In 2020，the economy of the northeastern provinces has experienced a difficult recovery process. The recovery growth momentum of the service industry has gradually stabilized，key industries have gradually recovered，and emerging industries and new business formats have flourished. At the same time，it should be noted that the external environment is becoming more complex and changeable，the trend of normalization of the NCP epidemic is obvious，and the pressure for stable growth of the service industry is still great. In addition，the service industry also has problems such as low development quality，weak corporate competitiveness，and insufficient supply of factors. In 2021，the three northeastern provinces should continue to follow national and provincial decisions and deployments，and promote the quality and expansion of the service industry. Strategies such as industrial integration and development，creating a good environment，and smoothing the international and domestic circulation promote the transformation and upgrading of the service industry and achieve high-quality development.