The invention discloses a full-automatic hose core forming machine which comprises a first wire drawing machine, a rotating rod, a stress relieving device, a second wire drawing machine, a fusion device and a chopping device; the first wire drawing machine is mutually connected with a driving wheel; the rotating rod is located on the inner side of a guide sleeve; a heating coil is arranged at the right end of the rotating rod; a cooling spray nozzle is arranged at the upper end of the stress relieving device; the second wire drawing machine is mutually connected with the stress relieving device through a guide wheel; an electric control cabinet is arranged on the right side of the fusion device; the chopping device is located on the left side of a discharge guide roll; and a discharge plate is fixedly on the right side of the discharge guide roll. The full-automatic hose core forming machine requires no manual operation, the work force is saved effectively, and the production efficiency is improved substantially; with the adoption of a heating and stress relieving and mutual fusion integrated mode, a large amount of time is saved; and with the adoption of a bilateral rotational forming mode, a notch of a roughcast product is filled effectively, so that the quality of a hose core is improved.