"High-end brain drain" and "negative mechanical growth caused by population migration" have become difficult problems on the road of northeast economic revival. Since 2013, there has been a net outflow of permanent residents in northeast China for seven years, totaling 1.64 million people. At present, only a few key cities in northeast China, such as Shenyang, Dalian and Changchun, have seen a net inflow of population, while nearly all cities in Heilongjiang have seen a net outflow. Statistics show that from 2014 to 2018, the number of graduates from universities in Heilongjiang Province who went to start businesses and work outside the province was approximately 251,700, with an average annual outflow of 50,300. Only 14% of those admitted to universities outside the province returned for employment. At the same time, the northeast region is showing a decline in both the natural growth and the mechanical growth. Since 2013, the negative mechanical growth caused by population emigration has become the main reason for the population decline in northeast China. The real estate market is the most visible part of the series chain reaction triggered by the population outflows. Take Daqing as an example. Since 2014, the local population has been in a state of net outflow. In 2019, the city’s net emigrant population was 8,923. According to the local official estimate, the outflow of population caused a shortage of rigid demand, "if calculated on the basis of 30 square meters of housing per capita, it directly affected the sales of 268,000 square meters of housing". It should be pointed out that the population outflow and demographic imbalances brings a series of influence, and will far exceed the impact to a few industries. Driven by the aging population structure, the economic development of the northeast will be affected by reduced consumer demand and lower production levels. At the same time, the expenditure of retirement pension and health care system will also increase the government’s financial burden.