The invention relates to a die head of a rubber cable production line. The die head comprises a die head body and a wire through pipe, wherein the line through pipe penetrates through a cavity of the die head body, a dividing body unit is arranged between the wire through pipe and the die head body, the outlet end of the wire through pipe is provided with an inner opening unit and an outer opening unit, one end of the inner opening unit is abutted against the dividing body unit, the other end of the inner opening unit is abutted against the inner side of the outer opening unit, the outer side of the outer opening unit is provided with a sealing flange which is fixedly arranged on the die head body through an end cap and a screw, the tail end of the die head body is provided with a tail seat which is used for adjusting the dividing body unit, and the middle part of the die head body is provided with two adhesive inlets which are communicated with the dividing body unit, and is connected with one or two adhesive inlet mechanisms. The die head has the advantages that under the premise of not changing the locations of main device structures, such as external hosts, only one part of structure parts in the die head is replaced, so the interchangeability of the single-machine single extrusion and the dual-layer co-extrusion is completed, various requirements of a customer are met, and the practicality is improved; meanwhile, the equipment investment of the production line is reduced, and the production cost is reduced.