随着企业社交网络平台逐步应用，已经出现了一些使用企业社交网络平台行为和效益的研究，但缺乏从企业社交网络平台具有的特征角度来深入剖析员工的使用行为和其使用动机，并且缺乏对员工使用企业社交网络平台如何影响知识分享的解释性、理论化的研究。本项目以印象管理、疆界管理、交互记忆系统等理论为基础，综合运用文献探讨与理论分析、深度访谈与焦点群组访谈、实验方法、大样本问卷调查、服务器端使用行为数据分析和数理统计分析研究相结合的方法，进行如下三个方面研究：（1）探析员工使用企业社交网络平台行为与关键动机研究；（2）研究员工疆界管理和印象管理策略对其使用企业社交网络平台行为的影响；（3）剖析员工使用企业社交网络平台对知识分享的影响机理研究。本项目研究结论能够为企业社交网络平台使用提升知识分享成效提供理论支持，丰富印象管理、疆界管理、交互记忆系统和和企业社交网络平台使用理论。

With the gradual application of enterprise social network sites, there are some studies about enterprise social network sites usage and benefit, while there is a lack of explanatory and theoretical studies investigating the usage behavior and motivation from the perspective of the features of the enterprise social network sites, and studies investigating how the usage of the enterprise social network sites influencing the knowledge sharing. This project is based on the theory of impression management, boundary management and interactive memory system, and uses a variety of empirical methods including literature research and theoretical analysis, indepth interview, focus groups interview, experiment, survey, server side usage behavior data, and statistics analysis, to conduct the following three studies. First, study on employees' behavior and critical motivation of using enterprise social network sites; Second, study on the influence of employee boundary management and impression management tactics on the use of enterprise social network sites; Third, study on the mechanism of the impact of the employees' enterprise social network sites usage on knowledge sharing. The research results of this project can provide theoretical support for how to use enterprise social network sites to enhance knowledge sharing, and can contribute to the impression management, boundary management, interactive memory systems and the use of enterprise social network sites theory.