knowledge economy and information economy under the guidance of the global economy has developed into the center of the economy, the world has entered a new era of knowledge economy, so the knowledge manageme nt as a core part of the enterprise survival, in order to i mprove the competitiveness of the enterprises, the role of enterprise knowledge management platform cannot be ignored. In this paper, it is under the support of this theory to establish the model of small and medium-sized enter prises knowledge management platform, and has carri ed on the system for the model of fuzzy evaluation, put forwa rd the main influence factor, respectively is the e nterprise knowledge base, knowledge workers, system platform and enterprise management. CAI self-study the five general users, by using fuzzy evaluation after finally got the evaluation result for the better level, to prov e the rationality of this model, but also proved in this paper, the esta blished design and development of small and medium- sized enterprise knowledge management platform will play a role for future research.