Since　the　calculation　accuracy　of　using　permanent-magnet　(PM)　lumped　parameter　magnetic　circuit　model　to　calculate　the　attractive　force　characteristics　of　PM　contactor　is　low,　the　PM　distributed　parameter　contactor　equivalent　magnetic　circuit　model　is　proposed.　In　this　model,　according　to　the　distribution　of　magnetic　flux　density　in　PM,　PM　is　partitioned　along　and　perpendicular　to　the　direction　of　magnetization　based　on　the　minimum　entirety　relative　error.　The　curve　clusters　of　static　attractive　force　characteristics　could　be　obtained　through　the　calculated　values　of　static　attractive　force　characteristics　of　the　contactor　by　calculating　the　equivalent　magnetic　circuit　of　the　PM　contactor.　In　the　combination　with　the　curve　clusters　of　flux　linkage　of　static　coil,　dynamic　differential　equations　of　PM　contactor　can　be　solved　to　obtain　the　static　attractive　force　characteristics.　Comparing　calculated　value　with　measured　value　of　attractive　force,　good　consistency　can　be　seen　and　relative　errors　of　static　and　dynamic　attractive　force　are　within　8%　and　10%　respectively.　This　result　shows　the　correctness　and　the　effectiveness　of　the　method　of　using　the　PM　distributed　parameter　contactor　equivalent　magnetic　circuit　model　to　solve　attractive　force　characteristics,　and　that　such　research　method　is　an　effective　way　when　designing　and　optimized　analyzing　PM　contactors.