The invention relates to the field of continuous extrusion cladding. The invention relates to a multichannel tapered die forming continuous extrusion cladding method which is realized in a way that: when four or six blanks are fed simultaneously, the blanks are driven in by extrusion rollers and evenly sent to a die cavity on the same circumference, and then are cladded on the core wire surface after passing through the tapered die cavity. The invention adopts the four-channel tapered die forming method, thereby ensuring the flowing uniformity of interior materials in the tool set and realizing the production of large-diameter tubing and large-diameter cladding. The invention uses the tapered die structure to form, so that the materials can be cladded on the core wire surface tightly and firmly without adding a drawing process. The production of tubing and sheath wires adopts the same equipment and the same tool set, and therefore, the equipment can be used for multiple purposes.