The private economy is an important part of the socialist market economy,and an important carrier to promote the high-quality economic development in China.The high-quality development of private economy has historical inevitability:adapting to the contradictory movement of productive forces and production relations,adapting to the inevitable requirements of the development of socialist market economy,and summing up historical experience.The main problems facing the high-quality development of private economy are:market dilemma,financing dilemma,transformation dilemma and policy dilemma.To this end,it is necessary to adhere to the right innovation,crack the market dilemma,multi-pronged measures,crack the financing dilemma,transform the growth momentum,crack the transformation dilemma,take management and service simultaneously,crack the policy dilemma,and strive to promote the high-quality development of the private economy.