Abstract: 【Purpose/significance】Socialized Q&A community has become an important way for users to search and acquire knowledge
under the network environment.The analysis of users' knowledge adoption behavior is helpful to improve the knowledge organization
and service ability of socialized Q&A community,and also has important practical significance for the operation and management of the
community【. Method/process】In this paper,Zhihu was selected as the research object,and the knowledge adoption behavior model of us-ers in socialized Q&A community was constructed by using grounded theory,data collection,three-level coding and other processes,combined with relevant theories of cognitive psychology【. Result/conclusion】It is found that three dimensions,self-cognition,platform cognition and social cognition, have significant impacts on users' knowledge adoption behavior, and stimulate users' willingness to adopt knowledge through two intermediary variables,namely, cognitive usefulness and cognitive ease of use, and two regulatory vari-ables,namely,technical and emotional factors,which affect users' knowledge adoption behavior【. Innovation/limitation】This paper ex-plores the influencing factors model of knowledge adoption behavior in socialized Q&A community from the cognitive perspective based on grounded theory.However,the sample size of the collected Zhihu is small,and the reliability and validity of the conceptual model have not been tested by too large a sample.