Abstract:The actual end users of an organization s product and service are the source of open innovation. However,some organizations have difficulty in absorbing these innovation source due to lacking the capacity to understand and adopt end user ideas,and fear to lose controlling of the innovation process. The paper proposes that models which are for integrating end user into an organization s innovation process based on the existing research conclusion,including optimizing and managing lead users,adopting the targeting user toolkits,embedding validly human resources,and integrating organization into user innovation communities. Furthermore,it puts forward the lead user s diffusion model founded on the social relation networks theory. Through analyzing the implementation and management of each model based on user innovation communities,the paper provides the areas that need further research according to the case study of the Dell IdeaStorm wed site.