Abstract: Thanks to the online knowledge platform, users have got a new way to exchange knowledge. Value co-creation based on interaction has profoundly changed the mode of value creation on the platform. Embedding of community plays a pivotal role in promoting multi-party interaction and activating users’ willingness to co-create value. This paper uses the Value Go- creation Theory and Activity Theory, integrates 9 influencing factors from 3 levels of platform, community and user, and this paper constructs the influencing factors model of user value co-creation intention. This paper uses fsQCA to analyze the set relation of 574 questionnaire data. The findings of the research can be categorized into the following. Firstly, there are 14 configuration paths that activate user value co-creation, which are divided into 8 configurations in the second-order and clustering into 3 types: Community and User Dual Dominated-Platfbrm Driven Type, Community Dominated-Platform Reliant User Driven Type, Users Dominated-Platfonn Driven Type. Secondly, Self-efficacy in the user dimension, Opinion Leaders and Community Atmosphere in the community dimension are the most important factors to activate users' willingness to co-create value, the factors in the platform dimension are the promoting forces of user participation in value co-creation. Thirdly, under certain conditions, the factors of platform, community and user have substitute and complementary relationships. The conclusions of this research provide a practical inspiration for online knowledge platform to find a breakthrough to activate users' intentions of value co-creation and realize value co-creation.

Key words:  , online knowledge platform , value co-creation , embedding of community, fuzzy set qualitative comparative analysis (fsQCA)