The utility model relates to a coating type radiation cross-linking automatic temperature control heating cable, which comprises two metal conducting wire electrodes (1), insulating layers (3) and single cables, wherein, the two metal conducting electrodes (1) is wrapped in a cable heating element (2) in parallel interval mode; the insulating layers (3) are orderly wrapped outside the cable heating element; the single cable is composed of a flame retardant restrictive coating (5). The utility model is characterized in that the cable is formed by that at least three single cables are connected in parallel, and the two adjacent single cables form a flexible connection mode to hang together. Compared with the prior art, the utility model not only has the advantages of more reasonable structure, even thermal power distribution and small loss, but also can saves cable consumption, reduces the fund investment of prior period engineering, and simultaneously, effectively reduces later period operation and maintenance costs.