Social forces participating in the public cultural services shows the trend of diversification in China. The social management of public cultural institutions is an important part of the government purchasing public cultural services, with its subjective factors and practical significance. The local practical experience cases show that carrying out the social management of public cultural institutions needs to clear the responsibility of government, to explore the effective way, to make careful outsourcing contracts, to carry out characteristics and standardized services, to strengthen process management, scientific decision-making and democratic supervision, to pay attention to evaluation and satisfaction, and finally to strengthen the cultivation and regulation of professional institutions and social organizations.