Adjustable support for improving comfort level of legs of radiotherapy patient

The utility model relates to an adjustable support for improving comfort of legs of a radiotherapy patient, which comprises a rectangular base, square grooves distributed in an isosceles triangle shape are arranged on the upper surface of the base, through grooves are arranged on the lower surfaces of the square grooves, and a front arm and two groups of rear arms are respectively arranged in the through grooves from front to back. Leg supporting plates are mounted above the front arm and the rear arm; according to the adjustable support for improving the comfort level of the legs of the radiotherapy patient, the front arms and the rear arms are arranged, the stretching heights of the front arms and the rear arms are controlled through the front arm control button and the rear arm control button through the hinging effect of the fixing blocks and the connecting blocks, and the fixing positions of the legs of the patient are adjusted through the height difference; the leg fixing device is simple in structure,