The hollowing out of rural industry is an inevitable phenomenon in the process of urbanization and industrialization. It is also a bad evolution process of rural system. It reflects the unbalanced development of urban and rural areas and the insufficient development of rural areas. Urban rural dual structure, urban-rural income gap, urban-rural infrastructure and public service gap, short-term behavior, industrial isomorphism and unreasonable financial subsidies are the main reasons for the formation of rural industry hollowing out. The comprehensive impact of rural industry hollowing out on Rural Revitalization mainly includes delaying the process of agricultural modernization, affecting the improvement of rural living environment, expanding the negative impact of rural ecological environment, accelerating the marginalization of rural culture, increasing the difficulty of effective rural governance, and increasing the uncertainty of farmers' income. During the "14th five year plan" period, to solve the hollowing out of rural industry in Northeast China, it is necessary to optimize the regional layout and industrial structure of rural industries, promote the organic connection between small farmers and new business entities, take "Renxing" as the support to lead the increase of industrial expansion, accelerate the formation of diversified investment pattern of industrial revitalization, lead the quality change of rural industry with brand construction, and constantly consolidate the rural ecological resource base And actively strive for the support of relevant national policies.