In　order　to　control　a　multi-level　inverter,　a　multi-sinusoidal　pulse　width　modulation　(SPWM)　generator　is　developed　based　on　phase　disposition　strategy.　The　field　programmable　gate　array　(FPGA)　inputs　the　modulation　wave　data　from　the　external　interface　of　digital　signal　processors　(DSP).　Then,　FPGA　generates　the　multi-channel　SPWM　signals　by　comparing　the　modulation　wave　data　with　the　carrier　wave　data.　To　verify　the　correctness　of　the　design　of　SPWM　generator,　a　novel　validation　method　is　proposed　based　on　simulation　model　and　experiments.　The　multi-channel　SPWM　wave　data　is　stored　through　by　logic　analyzer　and　then　imported　to　multi-level　inverter　simulation　model　as　the　control　signal.　The　design　of　SPWM　generator　is　verified　by　comparing　semi-physical　simulation　results　with　the　simulation　results.　The　effectiveness　of　the　design　is　proved　with　the　simulaton　and　experiments　prove　that　the　design　method　is　correct,　and　the　valaidation　method　is　efficient,　practical　and　fast.　©　2018,　Science　Press.　All　right　reserved.