In　order　to　further　improve　the　reliability　of　AC　contactor　operation,　this　paper　designs　a　control　strategy　based　on　flux　linage　closed　loop.　Firstly,　a　flux　linkage　observer　is　designed　based　on　the　topology　of　the　full-bridge　driving　circuit,　with　bus　capacitance　voltage　and　coil　current　as　inputs.　Subsequently,　a　flux　linkage　closed-loop　control　strategy　is　developed.　Before　making,　the　coil　resistance　is　automatically　identified.　During　the　making　process,　only　a　suitable　flux　linkage　reference　value　needs　to　be　set　to　realize　the　automatic　flux　linkage　weakening　and　contact　bounce　reduction.　During　the　holding　stage,　the　noise　adaptive　suppression　strategy　is　adopted,　which　can　better　suppress　high-frequency　noise.　In　the　breaking　stage,　the　magnetic　circuit　is　reversed　excited　to　enhance　the　ability　of　breaking　the　circuit.　The　control　strategy　proposed　in　this　paper　can　effectively　improve　its　control　performance,　simplify　the　control　difficulty,　and　is　of　great　significance　for　the　intelligent　control　of　the　contactor.　©　2024　IEEE.