The invention provides a potting method of a stator winding. Screen cloth mixed with glue is added on the side wall of the stator winding of a motor so as to increase the strength; and a heat shrinkable tube is used for fixing screen cloth, so that the smoothness of the side wall is guaranteed, and the thickness is uniform. The two cheap materials such as screen cloth and the heat shrinkable tubeare used for treating the side wall of the stator winding of the motor, so that the side wall potting uniformity and accurate size of the motor are guaranteed, a glue layer is extremely thin, the strength is extremely high, and the glue layer cannot smash or fall off.