Since the 21st century，the role of soft power of cultural has become increasingly prominent in the competition of comprehensive national power，and cultural construction plays an important role in the country’s “five-in-one” strategic layout in China. This report，based on objective data of public cultural services in China，supplemented by micro-survey data，conducts a comprehensive evaluation and research on input-output efficiency of public cultural services from 2014 to 2016. The evaluation results show that the input-output efficiency level of public cultural services is not high，and the growth is not obvious. The traditional management model of “business development guided by increasing public input” is losing efficiency，and the development of public cultural services has entered a new stage of improving the overall services efficiency through institutional innovation.