The utility model discloses a high -voltage variable -frequency motor with built -in blower, which comprises a motor body, motor body's upper end lateral wall is equipped with the mounting groove, theinterior bottom fixedly connected with of mounting groove places the board, it is equipped with the standing groove to place the inboard, be equipped with two fan bodies in the standing groove, two backup pads of interior bottom fixedly connected with of standing groove, two the equal fixedly connected with in upper end of backup pad carries out the supporting mechanism fixed, two to the fan bodythe upper end fixed connection of supporting mechanism is at the interior top of standing groove, the relative inner wall of standing groove all is equipped with the air outlet that corresponds withthe motor body position, the one end that motor body kept away from the supporting mechanism runs through the air outlet and is equipped with the exhaust fan. The utility model discloses simple structure, it is rationally distributed, convenient operation, the cost is with low costs, dispels the heat to the high -voltage frequency converters motor through the fan, and refrigeration effect is good,has prolonged the life of motor to a certain extent.