A brushless motor, comprising: a stator, having a front side and a rear side; and a rotor, having a front side and a rear side and installed in the stator, wherein the stator comprises: a front insulating frame, disposed on the front side of the stator; and a rear insulating frame, disposed on the rear side of the stator, wherein the rotor comprises: a rotating shaft, rotatable around a first axis; a front bearing, installed at a front end of the rotating shaft; a rear bearing, installed at a rear end of the rotating shaft; a front-end cover, disposed on the front side of the rotor and installed on the front bearing; and a rear-end cover, disposed on the rear side of the rotor, the rear-end cover being installed on the rear bearing and abutting against the rear insulating frame, wherein a front side of the front insulating frame is provided with a plurality of first snap parts; the front-end cover is provided with a plurality of second snap parts in a circumference of the front-end cover; and the plurality of first snap parts are snap-fitted with the plurality of second snap parts, characterized in that each of the plurality of first snap parts is an elastic hook portion located at an inner side of the front insulating frame and each of the plurality of second snap parts is a snap groove located at an outer side of the front-end cover, so that the outer side of the front-end cover is snap-fitted with the inner side of the front insulating frame. a front insulating frame, disposed on the front side of the stator; and a rear insulating frame, disposed on the rear side of the stator, wherein the rotor comprises: a rotating shaft, rotatable around a first axis; a front bearing, installed at a front end of the rotating shaft; a rear bearing, installed at a rear end of the rotating shaft; a front-end cover, disposed on the front side of the rotor and installed on the front bearing; and a rear-end cover, disposed on the rear side of the rotor, the rear-end cover being installed on the rear bearing and abutting against the rear insulating frame, wherein a front side of the front insulating frame is provided with a plurality of first snap parts; the front-end cover is provided with a plurality of second snap parts in a circumference of the front-end cover; and the plurality of first snap parts are snap-fitted with the plurality of second snap parts, characterized in that each of the plurality of first snap parts is an elastic hook portion located at an inner side of the front insulating frame and each of the plurality of second snap parts is a snap groove located at an outer side of the front-end cover, so that the outer side of the front-end cover is snap-fitted with the inner side of the front insulating frame. a rotating shaft, rotatable around a first axis; a front bearing, installed at a front end of the rotating shaft; a rear bearing, installed at a rear end of the rotating shaft; a front-end cover, disposed on the front side of the rotor and installed on the front bearing; and a rear-end cover, disposed on the rear side of the rotor, the rear-end cover being installed on the rear bearing and abutting against the rear insulating frame, wherein a front side of the front insulating frame is provided with a plurality of first snap parts; the front-end cover is provided with a plurality of second snap parts in a circumference of the front-end cover; and the plurality of first snap parts are snap-fitted with the plurality of second snap parts, characterized in that each of the plurality of first snap parts is an elastic hook portion located at an inner side of the front insulating frame and each of the plurality of second snap parts is a snap groove located at an outer side of the front-end cover, so that the outer side of the front-end cover is snap-fitted with the inner side of the front insulating frame.