The utility model relates to the technical field of electric machine, and disclose a DC brushless electric motor, including the organism shell, the inside fixed mounting of organism shell has quantityto be two mount pad, two the opposite face of mount pad all with organism swing joint, the right side fixed mounting of organism shell has the rear cover, the left side fixed mounting of organism shell has the front shroud, the cavity has all been offered to the top and the bottom of organism shell, fixed mounting has quantity to be two fixed block, two in the cavity the inside of fixed block allwith the heat pipe fixed connection that runs through organism shell and rear cover. This DC brushless electric motor, through the heat insulating board that sets up, fixed mounting's heating panel on the heat insulating board, the heat insulating board to the organism heat carry on the rupturable simultaneously the heat pipe dispel the heat to the heating panel the heat is leading -in, through the radiating groove of offering on the organism shell, the organism shell carries out natural cooling through the radiating groove, has made things convenient for DC brushless electric motor to reachthe purpose that the radiating effect is good.