Abstract: The main influencing factors of knowledge transfer performance are analyzed using DEMATEL method based on trapezoidal intuitionistic fuzzy number. The main findings are as follows: The high correlation intensity, the transfer ability of knowledge source and the transfer motivation are the important influencing factors of knowledge transfer performance; The causality, complexity and implicitness of knowledge itself are the main factors that determine the performance of knowledge transfer. The management and optimization of the influencing factors with high degree of influence and high degree of centralism, Is the key to improving the performance of knowledge transfer. The conclusion of this study shows that although the research on the factors affecting the performance of knowledge transfer tends to mature, it is still necessary to conduct an in-depth study on the impact patterns and impact mechanisms among various factors..