This paper carry on the high frequency keyword statistics as well as each kind of scientific knowledge map drawing, combing the expert suggestion to find the research hot spot and the evolution path in public cultural service domain. The analysis shows that equal basic public cultural services, the role of library in the system of public cultural services, the performance evaluation of public cultural services, the supply model of rural public cultural services, cultural needs of migrant workers, the sustainable development of rural library are hot spots in the research of the field; the study of the evolutionary path has experienced the stages of enlightenment, exploration and development ,research deepening; and we can infer that the participation of nongovernmental forces, basic public cultural services form vulnerable groups, construction of digital public cultural services, basic public cultural services standardization and cultural governance may possibly be the research hot spots in the future.