The invention discloses a hospital bed for protecting patients. The hospital bed comprises a bed fireproofing anti-impacting bed frame, a fireproofing anti-impacting first bed plate which is placed on the bed frame and can be opened, a second bed plate which is fixed on the bed frame and placed below the first bed plate, a second mattress arranged on the second bed plate and an oxygenerator which is fixed on the bed frame and placed between the first bed plate and the second bend plate. According to the hospital bed for protecting patients, when disasters happen, long-term bedridden patients or patients who can not save themselves can be closed in the hospital bed in a protective cavity, the outer wall of the protective cavity is impact resistant, small area fire extinction is achieved, earthquake can be resist, fires can be controlled, and the safety of the patients are guaranteed.