The invention relates to a production method of a composite type heating pad. Firstly, a layer of non-woven fabrics is laid on a wire arrangement mold, and then heating leads are arranged according to the wire arrangement mold. After the wire arrangement is finished, a layer of hot melt glue and a layer of non-woven fabrics are covered sequentially. The layer of non-woven fabrics, the leads, the hot melt glue and another layer of the non-woven fabrics are put on a heat-sealing machine to be hot-pressed and taken out after the hot melt glue is melted and the non-woven fabrics and the heating leads are pressed tightly, and the composite type heating pad is obtained after forming at normal temperature. By means of the method, namely the heating leads are arranged between two layers of non-woven fabrics and the heating leads and the two layers of non-woven fabrics are fixed through the hot melt glue, the fixing is firm, no displacement of the heating leads relative to the non-woven fabrics is caused, and service life of the heating pad is prolonged. In addition, the wire arrangement mold is adopted in arranging wires, wire arrangement grooves are arranged on the wire arrangement mold, and the heating leads are prevented from being pressed in press sealing so as to damage the heating leads. Locating pins are arranged at the position of corners of the wire arrangement grooves, locating of the non-woven fabrics and the hot melt glue is obtained, and the heating pad after heat-sealing can not produce wrinkles.