The development of new quality productivity is the internal requirements and important focus of promoting high-quality economic and social development. Private enterprise plays an important role in the development of new quality productive forces. Private enterprise has strong innovation vitality, which can provide impetus for the innovative allocation of production factors and the revolutionary breakthrough of technology. At the same time, the development of new quality productivity of the private enterprise is also facing the problems of limited access to factors, high cost of factors, and the weakening of development expectations, which affects the role and advantages of the private enterprise. To this end, it is necessary to continue to increase policy efforts to support the private enterprise, and build a bridge of mutual trust between government and enterprises, a bridge of mutual promotion of social enterprises and a bridge of mutual integration of the production chain.