The invention discloses a self-cooling type heat-insulation and high-temperature-resistant mobile composite cable for automatic welding, and a manufacturing process of the cable. The cable is sequentially provided with a cable conductor (1), a composite insulating layer (2), two power line cores, a data line (3), a signal line (4), a non-magnetic corrugated pipe (5), a control line (6) and a filling rope from inside to outside, wherein the above parts are twisted together. A wrapping layer (7), a heat insulation layer (8) and a protection layer (9) are sequentially arranged outside the cable.The cable is an integrated comprehensive transmission cable comprising a strong current power line, the data line, the signal line and the control line. The cable can be matched with automatic high-temperature welding complete equipment. By means of the cable, the comprehensive transmission of strong current, automatic communication data, image signals and control action instructions in a high-temperature environment of about 1000 DEG C can be realized. The cablehas good social benefits.