[Purpose/significance] The open sharing of scientific data and models has become a common need for the in-depth development of knowledge innovation activities and academic exchanges, but few studies have studied the impact mechanism of data sharing in humanities and social sciences. Therefore, this article explores the influencing factors of humanities and social sciences data sharing willingness, which has rich theoretical and practical significance. [Method/process] Based on peer pressure theory, several factors that affect the sharing of humanities and social sciences data are divided into internal pressure and external pressure, and a model of influencing factors for the willingness to share data of humanities and social sciences is constructed, and then empirical analysis is conducted through questionnaire data. [Result/conclusion] The five variables including interpersonal trust, mutual benefit, attitude, group atmosphere, and group system have a positive impact on the researcher’s willingness to share data. Perceived risk has a negative impact on the researcher’s willingness to share. Researchers' willingness to share has a positive impact on sharing behavior.