According to historical records, neijiang city (including ziyang district newly established in February 1998) is a place with early development and long history. The history can be traced back to the late paleolithic age in ancient times, and it can be roughly divided into the following 7 periods in terms of its historical evolution process until the republic of China:

Ancient times
Neijiang city is located in the middle reaches of tuojiang river in the hilly area of the central sichuan basin. According to the "ziyang man" skull fossil unearthed in 1951 and some other stone tools, pottery pieces and plant specimens and other cultural relics confirmed that about 35,000 to 40,000 years ago, the tuojiang river basin where neijiang city is located is home to ancient people living and multiplying, and gradually formed a primitive tribal groups. Therefore, there is the theory that today's ziyang and zizhong regions were the fiefdoms of the state of yao. The history of China entered into the zhou dynasty. Today, neijiang city has been divided into the ancient shu and the ba. Spring and autumn period was born in the present tuojiang river coast wang erxi Confucius division, doctor zhou chang hong is a proof. Jianyang 1975 ─ 1982 times of the zhou dynasty unearthed copper base and amraphel, spear, sword and other instruments and copper, suggests that the area in the spring and autumn warring states period, is the ancient shu kingdom military stronghold.

In the sixth year of king zhaoxiang of qin (301 BC), the state of qin pacified the rebellion of the marquis of shu, and at the same time sent zhang yi to destroy the state of ba to the east, and changed the counties of shu and ba respectively. Today, neijiang city was incorporated into the territory of the state of qin and became the communication channel between ba and shu counties.

Qin and han dynasties
In 221 BC, the first emperor of qin destroyed the six kingdoms and established a centralized and unified feudal autocratic dynasty. Today, neijiang city has been developed as part of the qin empire in bashu area. Han gaozu five years (202 years), bashu ping, the national reunification. After the reign of sutra and jing, emperor wudi of the han dynasty succeeded to the throne to expand the territory and intensify the development of the southwest frontier. From jianyuan emperor wudi six years (before 135) to shun emperor ever built years of the eastern han dynasty (A.D. 126 ─ 131) in this middle has build the tuojiang river in ziyang city today goose jiang town as the center of zizhong county, neijiang westernization dragon hill downtown today centered han, anxian county, neijiang today first appeared in the history of economy development. According to "hua Yang guo zhi" and other documents and hundreds of han tombs excavated cultural relics confirmed: today's neijiang city iron mountain (northwest of weiyuan) of iron, niuge bei salt, zishui (that is, tuojiang river) along the orange grapefruit, is shipped to chengdu in batches through zishui; Gaozu ten years (197 years ago) by xiao he supervised the construction of weidanggong dongge brick also arrived in the capital (now ziyang city) settled. In the first year of yuankang (the first 105 years), the special inscriptions of "capital city" han brick were also published in the capital. "Huayang guozhi" also said: "han 'an county, county east 500 li, although the land is forced, landscape is particularly beautiful, appropriate silkworm mulberry, salt Wells and fish ponds to hundreds, every family has yan, a county rich. In the fifth year of emperor yongjian of shundi (AD 130), the plank road of han 'an was built, which further communicated the economic relations between han 'an and yizhou chengdu. Historical data show that the farming, animal husbandry, fishing, sericulture, smelting, pottery making, well salt, building materials, construction and other handicraft industries in neijiang city have developed to a high level since the han dynasty. Tuojiang river basin fertile soil gave birth to tuojiang people, ci fu home wang bao, famous minister dong jun, yellow water conservancy expert wang yanshi is growing up from here. This relatively stable situation was maintained until the fifth year of the reign of king hui of the shu dynasty (263), when sima zhao sent troops to destroy shu.

Jin dynasty, southern and northern dynasties
In the first year of the two jin and qin dynasties (266), sima yan became emperor, and neijiang city entered the territory of the western jin dynasty. Since the first year of yongping, emperor hui di (191 years), the "chaos from all directions" in the north and the kansai army launched the mojin, forcing a large number of guanzhong scholars and kansai refugees to enter shu to earn a living and seek food, thus triggering the great migration of local residents from niuge bei, zizhong and han 'an. Huidi tai 'an two years (303 years), according to the ba people lite shu building number, the next year (304 years) his son li cheng declared himself emperor, the state name dacheng, the southern liao people took the opportunity to invade the north, han 'an county territory for the "yi liao" according to the county people away from home with the county government overseas Chinese; At the same time, the county government deserted zizhong county, also due to frequent wars, the name of the actual waste; Extremely turbulent niugebei county, the conversion of shu county, today neijiang city in the disaster of as long as 200 years.

In the second year after the abolition of the western wei dynasty (553), pingshu, the power of central government control gradually moved southward. In those days, niuge bei county (renamed Yang 'an county after two years) was located in the southwest corner of the new capital state, responsible for the south into the comfort work. The northern zhou dynasty emperor wudi jiande four years (575 years) in today's anyue, lezhi county new home puzhou and anyue, yongkang, duye counties. In the second year of emperor wucheng of the Ming dynasty (560 years), zizhou moved to the south to the old place of hanzizhong county. Baoding years emperor wudi (561 ─ 565) and rock property in this zizhong heavy dragon town county; Tian he and two years later (567) in the former site of han 'an zhongjiang county (sui kaihuang first year [581] renamed neijiang county). Dilapidated already long tuojiang middle reaches area, must resume reconstruction again finally.

Sui, tang, five dynasties, two song dynasties
In 581, emperor wen of the sui dynasty replaced the northern zhou dynasty as the emperor and soon destroyed Chen, realizing the unification of the whole country and laying the foundation for the economic recovery of shu. In 618, tang gaozu established the tang dynasty. In 637, emperor taizong ascended the throne and realized the reign of zhenguan. The central area of tuojiang river basin, suffering from the war, has finally formed a stable development situation of joint governance of zizhou (in the seventh year of emperor wen di of sui dynasty [587] moved panshi county) and jianzhou (in the early sui dynasty, newly built tuojiang river basin and yangan county), and entered the second period of extraordinary economic prosperity in history. From the widespread distribution in today's neijiang city districts, cities, counties during the tang dynasty, the tang dynasty excavated hundreds of cliff stone inscription and temple tablets, tuojiang river basin in the central area of the economy and culture has reached a new level.

During the five dynasties, the central plains dynasty changed frequently, but shu was relatively stable. 965 years, song taizu sets shu hind, the economic condition of today neijiang city continues to develop to raise than period of tang dynasty 5 dynasties, the song dynasty cultural relic that the county such as county of today endowment middle, ziyang, an yue, city unearthed many places confirms, two song dynasty period, the pottery and porcelain that makes here, building materials product, no matter be breed craft, have very high level. A number of pieces of residential settlements, elegant architecture, orderly layout, reflecting the people's life at that time is good. The stable living environment created a group of talents who helped the world. The number one scholar xu general, xu yi, zhao kui, the prime minister zhao xiong, the neo-confucianist Chen tuan, and the mathematician qin jiushao were the outstanding ones. The county of anyue, which enjoyed the reputation of "west eyebrow (mountain) and east pu (prefecture)", had 262 jinshi in the song dynasty.

In the second year of duanping in lizong of the southern song dynasty (1235), the Mongolian army divided its forces and attacked sichuan province. Chun hu three years (1243), the Mongolian army from the south into sichuan, the capital of the prefecture and the county under its jurisdiction abandoned; Pu zhou army civilian builds iron peak city, buy according to danger cure, defend to treasure hu 6 years (1258 years) fixedly (city breaks state waste). Since then, today's neijiang city appeared in the history of the second major chaos.

Yuan, Ming and qing dynasties
From the 16th year of the yuan dynasty (1279), emperor shizu unified China and established a vast yuan empire. After more than 30 years of war at the end of song dynasty and the beginning of yuan dynasty, except for the reservation of the jianzhou system in today's neijiang city, the capital state and puzhou system have not been restored due to the scarcity of people. The year of emperor shundi to zheng 22 (1362). Xu shouhui's ministry put Ming yuzhen into shu and established the great xia autonomous region. A large number of huguang residents followed him into sichuan, and zizhou (including neijiang county) and anyue (including shiyang county) restored the governance of the prefecture and county.

Ming taizu hongwu four years (1371), general tang he, liao yongzhong and other rates of pingxia, now neijiang city with sichuan into the territory of the Ming dynasty. Taizu and chengzu of the Ming dynasty took various effective measures to encourage residents from other provinces to come to shu for cultivation and management. After the hongwu and yongle, hung shing, xuande four in almost 70 years (1371 ─ 1435) development, today the economy of neijiang condition to get the comprehensive recovery and development. To longqing and wanli (1567 ─ 1619), neijiang, county, state changes), great, Jane state change (once Jane county), an yue and joy to, hubei vying and etc.counties (new) [1567] of the first year of longqing (state) of 8 counties regionalization quantico basic fixed, with rice, sugarcane, SangMa as the main body of the planting and in metallurgy, mining, earthenware, salt, sugar, textile, etc as the main body of the handicraft industry to the history and development the third peak, have reached the best level in history. There are also many new achievements in the cultural education cause. In neijiang county, which has only 34,000 people (data of the sixth year of wanli [1578]), 119 jinshi, 312 civil servants and 25 senior officials above governor and governor in the Ming dynasty, are rare in the history of sichuan prefecture and county. During the chongzhen decade of emperor mingsizong (1637), a nationwide peasant uprising was triggered by the decadence of the ruling group, which affected sichuan. Since then, the Ming and the rebels, Ming and qing, between the qing and the rebels, the qing and wu sangui rebels between the war, the city of neijiang and the suffering of war, thousands of miles of fertile soil, deserted.

In the sixteenth year of the reign of emperor shunzhi of the qing dynasty (1659), shu was first settled, and in the early years of kangxi (1662), officials of various states and counties in neijiang city began to work one after another. In kangxi, yongzheng dynasties (1662 ─ 1735) advocates immigration and rests with the people, and a series of assignment policy of) wide, HuGuang, jiangxi, fujian, shaanxi province, such as a large number of residents to river reclamation, economy began to recovery. Yongzheng five years (1727), with the advanced information states (change from county, from ziyang, neijiang, the garden.empress, JingYan 4 counties), then through the qianlong, jiaqing and daoguang dynasties (1736 ─ 1850), the development of neijiang today's population has more than mid-ming period heyday, animal husbandry, fishery sericultural and sugar manufacturing also reached a new level. The sucrose production of neijiang and zizhou has been named as the three major sugar industry bases in China together with fujian and Taiwan. Neijiang candied fruit, longchang xiabu, le to lotus root powder and other local products are renowned throughout the country. Tuojiang, qiuxi river, qingliu river channel thousand sails competition, chengdu, issued to chongqing, wuhan; Dongda road (chengyu south line), xiaochuan east road (chengyu north line), capital (state) rong (county) and other land trunk roads, such as the flow of cars and horses, a busy, neijiang, capital state, Jane state, longchang 4 has become the main material distribution center in the central and southern sichuan region.

Repeatedly failed in 1842, the opium war, powers invaded China and national contradictions and class contradictions rise alternately, the boxers, li blue rebel in neijiang today in revolutionary activities, greatly inspired the people of this area of patriotism, revolutionary enthusiasm, in August 1911, the famous "Luo Quan conference" road associations, caused in the winter, vying, neijiang 3 endowment states county's independence. Yu peilun, Yang yuchang and hu yu, leader of comrade bao lu's army, made heroic sacrifices and wrote a glorious page for neijiang people.

During the period of the republic of China
The 1911 revolution ended the reign of the qing dynasty in neijiang city, but soon the northern warlords stole the fruits of the revolution. Today, neijiang city has become the center of the war of defending the country against yuan, the war of defending the law between the north and the south against the secession of the warlord areas in sichuan. Due to the continuous change of occupation forces in neijiang county, in the republic of China in 23 (1934), the collection of land taxes was prelevied until 1965, when the people were overwhelmed and the society was in extreme turmoil. Where there is oppression, there is resistance. Under the leadership of the CPC sichuan provincial committee, progressive young people and peasants in neijiang, anyue, longchang, lezhi, weiyuan and other places took an active part in the revolutionary struggle.

In the 24 years of the republic of China (1935), the sichuan government was unified, and the districts, cities and counties of neijiang city were divided into the second (governing capital, governing capital, neijiang, ziyang, jianyang, weiyuan, rongxian, renshou, jingyan 8 counties), the seventh (longchang), the twelfth district of administrative supervision (anyue, lezhi). On July 7, 1937, the war of resistance against Japanese aggression broke out. Today, the people of neijiang have done their utmost to support the war of resistance against Japanese aggression in terms of human, material and financial resources, and have made great contributions and sacrifices. People in sugarcane districts of neijiang and zizhong counties raised the sugar production to the highest level in history to ensure the supply of sugar in the front and rear. The new development of fuel alcohol industry at the same time, only 1942 ─ ─ three years to 1944, in neijiang in sichuan and endowment, jianyang and other three alcohol plant of producing alcohol 4025818 gallons, including 1 neijiang county to provide resources committee for alcohol in the war of resistance is up to 13.8% of the total demand of the commission. In the anti-japanese patriotic donation campaign launched by general feng yuxiang, contributions from neijiang, longchang and weiyuan counties totaled 89.2 million yuan. During the eight-year war of resistance against Japanese aggression, soldiers from eight counties died in battle in 6,261 people, army general rao guohua martyrs is one of the outstanding representatives.

After the victory of the war of resistance against Japanese aggression, the kuomintang government launched a full-scale civil war, went after militarism and intensified exploitation. Many wrongs will kill themselves. The KMT's counter-insurgency campaign of "counter-insurgency and state building" accelerated its defeat.

New China period
December 5, 1949, solstice 15, neijiang and other 8 counties people have declared liberation, ushered in a new era of history. In 1950, the office of the commissioner of zizhong moved to neijiang and renamed it neijiang special area. It controlled neijiang, zizhong, ziyang, jianyang, renshou, weiyuan and other counties. In 1951, neijiang county and its suburbs were divided into county-level neijiang city. In 1968, the district was changed into a district.

In 1985, it abolished the prefecture-level construction of neijiang city in neijiang district, and changed the city into a downtown area. In 1989, neijiang county was abolished and replaced with dongxing district, which is directly under the county level of neijiang city together with shizhong district. At the same time, it also has jurisdiction over seven counties including zizhong, ziyang, jianyang, weiyuan, lezhi, anyue and longchang, with a total area of 13,340 square kilometers.

In 1995, ziyang county was changed to county level ziyang city, and in 1996, jianyang county was changed to county level jianyang city, which are directly under the jurisdiction of sichuan province and managed by neijiang city. In February 1998, after the decision of the state council, the administrative division of neijiang city was readjured again, ziyang, jianyang, lezhi, anyue and other four counties and cities were divided, and another ziyang area was established. Neijiang municipality has jurisdiction over shizhong district, dongxing district, zizhong county, weiyuan county, longchang county and other 3 counties and 2 districts.