lean knowledge management ability is one of the most important reasons for the widely divergent effects of lean production in enterprises. It is of great significance to clarify the connotation and composition of lean knowledge management ability to optimize the lean knowledge management ability of enterprises. This paper takes enterprises implementing lean production as samples, collects data of typical enterprises, applies the grounded theory method, and constructs the dimensional structure and content of lean knowledge management ability according to the path of open coding, spindle coding and selective coding, so as to summarize the theory of relative saturation and verify it. The research provides reference for enterprises to improve lean knowledge management ability.