The invention discloses a manufacturing method of a radial inductor, and belongs to the technical field of manufacturing of electronic elements. The method comprises the steps of attaching to a bar; coiling wires; cutting off the tails of the wires; attaching to the bar; adhering a paper tape; coating with glue; assembling a rubber sleeve; sealing; drying; coating with glue; testing; inspecting the appearance. According to the method, the traditional radial inductor manufacturing method is improved; the paper tape is adhered to the inductor coil, the top part is coated with glue, the rubber sleeve is assembled, and then sealing is performed; the step of changing the bar after tin plating can be saved, so that the manpower is saved, and the working efficiency is increased; the subsequent steps of coating the top part with glue, assembling the rubber sleeve and sealing can be conveniently carried out, and therefore, the manufacturing cost is reduced, and the market competitiveness can be increased.