Body position fixing device for systemic radiation therapy

The invention discloses a body position fixing device for systemic radiation therapy. The body position fixing device comprises a bottom plate, a lateral position bed body, a headrest, a diffusion screen and a foot split bench, wherein the lateral position bed body comprises a box body, a backboard and foaming glue; the box body is mounted on the upper side of the backboard; one end of the headrest, in the length direction of the box body, is movably mounted on the bottom plate, and a gap is formed between the headrest and the box body; one side in the width direction of the box body, of the diffusion screen is fixed to the upper side of the bottom plate, and the backboard is connected to the other side in the width direction of the box body; the foaming glue and the foot split bench are both loaded on the upper side of the box body and located between the backboard and the diffusion screen; the foaming glue is located between the headrest and the foot split bench; and the top surfaceof the foaming glue is su