[Purpose/significance] This paper aims to analyze the operational efficiency of the public culture cloud platform and provide reference for improving the social service efficiency of the public culture cloud platform.[Method/process] The input-output index is selected from the perspective of the size, content, structure, maintenance, users and quality of the website, and the operational efficiency of the provincial public culture cloud platform is calculated and analyzed by using the Data Envelopment Analysis (DEA) method.[Results/conclusion] The operational efficiency of China's provincial public culture cloud platforms is low on the whole, and the scale efficiency is the main factor restricting the efficiency. Non-effective public culture cloud platform should focus on streamlining and efficiently organizing resource content, considering resources and services from the perspective of users, making full use of user data to improve platform quality and expanding platform influence through publicity and promotion.