The utility model relates to an esophagus support with radiotherapy effect, by tube head, pipe shaft and rectal cauda triplex, the tube head is the hollow hose of loudspeaker form, and its material is silicon rubber, and the esophagus support is convenient for change again in the feed of both being convenient for. The pipe shaft is cylindrical hollow hose, and the pipe wall outwards comprises nickel titanium memory alloy layer, silastic -layer, radiation agent layer and sclausura silicon rubber membrane layer from interior in proper order. The rectal cauda is cylindrical silicon flexible rubber hose, its down terminal surface be equipped with the arch, can reduce the damage to the esophagus wall, not only kept the esophagus unobstructed but also do not have a too big discomfort sense. The beneficial effects of the utility model are that: enabling the narrow position of esophagus and progressively expanding and resume unobstructed, patient is uncomfortable to feel littleer, and it can directly carry out radiotherapy to the esophagus tumour to radiate a beta ray that releases on the agent layer, reaches the effect of treatment and suppression tumour.