An anti-bedsore bed, comprising multiple expandable/contractable air bags 1 placed in parallel with each other in the width direction of the bed, an air-supplying/discharging means 2 of expanding and contracting the air bags 1 by supplying and discharging compressed air into and out of the air bags 1 at a particular interval t, and a control means 3 of controlling the air-supplying/discharging means 2, wherein the air bags 1 are formed cylindrical in the expanded state in such a manner that possible bedsore-developing regions of a care-receiver A are elevated and lowered at a particular interval t, and the air bags 1 has a blood circulation-accelerating unit 4 made of a material accelerating blood circulation of the care-receiver A. The blood circulation-accelerating unit 4 removes muscle stiffness by accelerating blood circulation and prevents bedsore of the care receiver who are in the bedridden state.