After the reform, I was exhausted and unable to complete the industrial upgrading due to blood transfusion in the Northeast economic countries. The rise of private economy and the entry of foreign capital have had a great impact on state-owned enterprises in Northeast China. With the vigorous development of private economy in the south, talents and technology are introduced from the old industrial bases in the northeast, and cheap local migrant workers are used to drive away the bad money formed by state-owned enterprises. Even if the quality is not as good as that of state-owned enterprises, it is superior to state-owned enterprises in price and marketing strategy, and the so-called "digging the corner of socialism" is outstanding. And foreign capital has also occupied the high-end market through high quality and high price, making state-owned enterprises survive in the cracks, and the benefits have declined year after year until they lose money.