The　reliability　evaluation　system　of　AC　contactor,　which　is　based　on　dynamic　characteristic　testing　technology,　is　developed.　According　to　the　data　feature　of　dynamic　characteristic,　an　adaptive　fuzzy　classification　is　presented.　On　the　basis　of　the　classification　method,　the　fuzzy　neural　network　for　the　performance　reliability　evaluation　system　of　AC　contactor　is　modeled.　The　conception　and　method　that　are　proposed　in　this　paper,　are　valuable　to　both　the　electrical　apparatus　R&D　and　product　examination.