In the first stage, Japan entered the northeast of China and established a relatively developed transportation network in the world. During Japan's rule in Northeast China, a large amount of Japanese capital flowed into Northeast China and invested in coal, steel, oil and other industries, which made the heavy industry in Northeast China develop rapidly in a short time. Of course, it is impossible for Japan to make such a selfless contribution to the development of Northeast China. During his reign, apart from transportation investment, industry and mining accounted for the largest proportion of investment. It has mastered the cutting-edge technology itself in technology introduction and left the low-end manufacturing technology in the northeast. At the same time, in terms of mineral resources, the mined minerals are continuously transported to Japan to alleviate the shortage of local resources. After China's victory in the Anti-Japanese War, Japan took measures to destroy the industrial facilities in northeast China. That is to say, the northeast industry in this period only developed, which is a part of Japan's' heritage' and cannot be the key to the formation of the northeast industry.
In the second stage, after the Japanese surrender, the industry in Northeast China was almost paralyzed until the establishment of New China, and with the efforts of the Party and the people, a real industrial base in Northeast China was formed. During the first five-year plan period, northeast industry was the key construction invested by the state. Among the national 156 key projects, Jilin Province accounts for 1 1, including the First Automobile Factory and Fengman Power Plant. However, there are 22 projects in Heilongjiang Province, among which the machinery industry project 10, and the investment in machinery industry accounts for 23.7% of the national machinery industry. During the "Second Five-Year Plan" and "Third Five-Year Plan" periods, due to the guidance and appeal of national policies, the industrial structure in Northeast China changed, emphasizing the development of heavy industry and leaning towards mining. For example, Liaoyuan Coal Mine (Jilin Province), Angang (Liaoning Province), Fushun Coal Mine (Liaoning Province) and Daqing Oilfield (Heilongjiang Province) all developed during this period. Of course, because the development strategy of Northeast China in this period was in line with the national advocacy and the requirements of productivity at that time, it can be said that the industrial base of Northeast China was once prosperous.
The third stage, since the reform and opening up. In view of the problems existing in the development of the old industrial base in Northeast China in the second stage, the state has taken corresponding measures. Introduce funds, establish development zones and attract foreign investment; Introduce advanced equipment, independently carry out research and development and improvement of equipment, and ensure the renewal of equipment and the scientific and technological content of products; To a certain extent, we should adjust the industrial structure, increase the structural proportion of high-tech industries, improve the scientific and technological content of various industrial products and attach importance to deep processing in accordance with the policy of "science and technology is the primary productive force". With the implementation of various measures, the industry in Northeast China has recovered to some extent, but it has not achieved great development in essence, or a strategic transformation is necessary to achieve the prosperity as in the second stage.
Well-known enterprises include: Fushun Power Plant, Fushun East and West Open Pits, Fushun No.2 Petroleum Plant, Fushun Aluminum Plant, Anshan Iron and Steel Company, Shenyang Pneumatic Tool Factory, Shenyang Cable Factory and No.12 Factory.