[Purpose/significance] Based on analysis of the practice development and research status of China's public cultural cloud, this paper explores key factors that affect the public's willingness to continue using the national public cultural cloud APP. [Method/process] The specific research content is to build a model for the public's willingness to continue using the national public cultural cloud APP, and then verify the model hypothesis by means of cross analysis, correlation analysis and regression analysis of the questionnaires. [Result/conclusion] Four subjective variables, perceived usefulness, perceived ease to use, perceived enjoyment and expectation perception confirmation, and three objective variables, convenience conditions, community impact, task technology adaptation positively influence continuous use willingness of national public cultural cloud APP, hypothesis about trust perception, interaction perception and quality level have not been verified. Finally this article analyzes mechanisms of public continuous use of the national public cultural cloud APP and suggestions are provided to enhance user stickiness to the APP and improve its client end construction.