Taking 342 questionnaires of manufacturing enterprises in the Yangtze River Delta as the research sample, this paper analyzes the influence mechanism of psychological contract, employees knowledge sharing willingness and integration model on the employees innovation performance in the process of technology integration. The results show that team member-type psychological contract and relational psychological contract have a positive effect on the employees innovation performance, while the transactional psychological contract has no significant negative effect on the employees innovation performance. Employees knowledge sharing willingness plays a mediating role in the process of team member-type psychological contract and relational psychological contract affecting the employees innovation performance, and the technology integration model plays a moderating role in the mediating effect of employees knowledge sharing willingness: breakthrough integration model has the strongest moderating effect, utilization-oriented integration model has the weakest moderating effect, and the moderating effect of expansion integration model is between them.