This　paper　presents　a　bi-directional　rotating　electromagnetic　operating　mechanism　for　control　and　protection　switching　devices　(CPS),　which　uses　the　“principle　of　minimum　magnetoresistance”　to　drive　the　contacts　by　bi-directional　rotation　of　the　moving　iron　core　to　realize　the　opening　and　closing　operations.　The　mechanism　has　two　independent　sets　of　coils,　which　are　coil　and　the　closing　coil.　During　the　operation　of　the　operating　mechanism,　the　switching　speed　can　be　adjusted　by　controlling　the　excitation　state　of　the　two　sets　of　coils,　which　can　reduce　the　closing　speed　to　reduce　the　contact　bounce.　In　the　process　of　mechanism　opening,　the　opening　speed　can　be　increased　by　energizing　the　opening　coil　to　reduce　the　harm　to　the　contacts　from　the　arc　generated　during　opening.　The　mechanism　has　both　control　and　protection　functions　and　has　a　specific　high　electrical　and　mechanical　life.　Firstly,　the　mechanism　is　theoretically　designed　to　determine　the　size　and　motion　form　of　the　mechanism.　Then　the　model　of　the　mechanism　is　built　in　COMSOL　for　simulation　analysis.　Finally　the　prototype　is　processed　according　to　the　designed　size　and　experimented.　The　simulation　and　experimental　structure　have　good　consistency,　which　verifies　the　feasibility　of　the　design　mechanism.　©　Beijing　Paike　Culture　Commu.　Co.,　Ltd.　2024.