Based on the research on the WeChat public accounts of provincial cultural museums，public libraries，and museums in China，it is found that compared with 2018，the self-media communication and management services of culture volunteer service gradually moved toward normalization，but there are differences between regions and institutions. The functions of the public accounts need to be improved，and the content presentation needs to be further enriched. In the future，we should continue to strengthen the construction of the public platform，innovate the mode of article delivery，standardize the platform operation，and enhance the digital development of cultural volunteer service.