文章以公共图书馆的主要业务指标为公益性信息服务的指代，以社会认识层次论为理论分析工具，通过对2004-2019年我国省级行政区域公共图书馆主要业务指标与居民教育水平的面板数据回归分析后发现：在公益性信息服务的初始阶段，居民受教育水平的提高明显推动了公共图书馆绩效水平的提升；在公益性信息服务的高级阶段，居民受教育水平对公共图书馆绩效水平没有明显的影响。此次实证研究结果不仅证实了社会认识层级结构由低向高的转化，也揭示了不同认知水平用户群体媒体选择特征，从而为公益性信息服务的转型提供了理论基础与实践策略。

Present study conducted a panel data regression on the provincial level public library performance index and educational level of local residents by taking the KPI of public library as the representation of public information service and the Hierarchical Social Cognitive Theory as tools of theoretical analysis tool. The findings of this research include that under the initial stage of public information service, the improvement of educational level of local residents affect the KPI of public libraries significantly. However, under the advanced stage of public information service, the relationship of users’ educational level and KPI of public libraries tend to vague. The findings of this research confirmed the hierarchical structure of social cognition and shed light on the characteristics of selection on media of different level of users. Thus, present study is expected to benefit both theory development and professional practice of the transformation of public information service.