In　order　to　improve　the　real-time　and　stability　of　Permanent　Magnet　Synchronous　Motor(PMSM)　controller　system,　and　to　realize　the　integrated　control　of　PMSM　driving　system　and　regenerative　braking　system,　in　this　paper,　the　PMSM　controller　using　FPGA　as　the　central　processor　is　designed,　which　is　based　on　the　PMSM　vector　control　principle.　Firstly,　PMSM　driving　and　regenerative　braking　model　are　analyzed;　and　then　the　design　method　and　timing　waveforms　for　PMSM　control　based　on　FPGA　are　described.　Results　of　PMSM　driving　experiment　and　PMSM　regenerative　braking　experiment　have　shown　that　the　performance　of　PMSM　controller　system　based　on　FPGA　is　much　better