Limb restraint strap

The invention discloses a limb restraint strap, and relates to the field of medical nursing. The limb restraint strap comprises three air bags. The air bags are sequentially spliced with one another and are provided with independent inflation cavities, and each air bag is provided with an inflation and deflation air valve; magnetic strip fixing straps and binding straps are arranged on two opposite sides of each air bag at intervals; a lining is arranged on a limb support surface of each air bag; sponge layers sleeve the magnetic strip fixing straps, and nylon grid layers wrap the sponge layers; the corresponding magnetic strip fixing straps are movably connected with each air bag by connecting clamp rings fixed to the two opposite sides of the air bag. The limb restraint strap has the advantages that the problems of vulnerability to rubbing or tightening injury of partial skin of patients and poor comfort due to small contact areas of existing restraint straps and bound positions whenthe patients are bound a