To sort and review the study on psychological capital, knowledge sharing, innovative behavior and the relationship among them, and on this basis put forward hypotheses, this article selected Logistics Enterprises employees as a sample, questionnaires were issued mainly R & D personnel, a total of 117 questionnaires and 101 copies were returned. Then the questionnaire data were described by statistical analysis, reliability and validity analysis, correlation and regression analysis, and ultimately concluded that: (1) Logistics Enterprises employees' psychological capital on knowledge sharing have a positive impact on innovation behavior; (2) Logistics Enterprises employees' knowledge sharing has a positive impact on innovation behavior (3) Logistics Enterprises employees' knowledge sharing plays an intermediary role between psychological capital and innovation behavior. Finally, the present study has some shortcomings, the data of this paper is very limited, and to explore the variables are the staff level, and the relationship of the organizational level still unknown, as research continues, hoping that above problems can be effectively solved in the future.