Abstract: With the widespread application of intelligent power distribution equipment, the analysis on key factors of the integration of circuit breaker primary and secondary equipment is urgent requirement of the admittance testing. In order to screen for influence factors of primary and secondary integration of distribution switch, the analytic hierarchy process-fuzzy comprehensive evaluation method is applied to establish a comprehensive evaluation model. The combined weighting method is used to obtain the comprehensive weight of each indicator, which effectively avoids the drawbacks caused by the single weight determination method. Then, the fuzzy evaluation algorithm is introduced into the comprehensive evaluation model of the primary and secondary fusion of the distribution switch to realize the comprehensive evaluation of the primary and secondary fusion of the distribution switch. The evaluation results and the analysis show that electromagnetic interference plays a leading role in the primary and secondary fusion equipment of distribution switches.