Abstract:Libraries using mobile phone apps to carry out socialized reading has become an important means of reading promotion services. Based on the external and internal driving factors of readers' socialized reading, this paper constructs an influencing factor index system of mobile phone apps on library socialized reading promotion service. Based on 173 questionnaires, this paper uses a multiple regression model to verify and empirically analyze the influencing factors of interactive service effect in library socialized reading promotion service. The survey results show that the quality of information resources, the accessibility of information, the social value of reading, readers' reading preferences and experience, the design of interface function and the types of apps have different degrees of positive effects on library socialized reading interactive service.