Since　the　semiconductor　technology　has　entered　the　age　of　90　nm,　the　static　power　consumption　of　the　chip　has　increased　rapidly.　For　edge　computing　devices,　the　waste　of　power　can　not　be　ignored.　This　paper　uses　the　relationship　between　power　consumption　and　power　supply　voltage　of　FPGA　and　DSP,　analyzes　the　characteristics　of　the　traditional　scheme,　and　designs　a　hardware　circuit　according　to　the　different　mechanisms　of　reducing　static　power　consumption　of　FPGA　and　DSP　According　to　the　design　of　FPGA　and　DSP　core　power　supply　voltage　compatibility,　the　system　realizes　the　requirement　of　FPGA　and　DSP　for　power　supply　voltage　amplitude　and　realizes　dynamic　control　of　power　supply　voltage.　After　verification　and　comparison,　FPGA　and　DSP　can　realize　the　adjustment　of　performance　power　consumption　and　stable　operation　under　the　power　system.　©　2021　ACM.