The invention relates to a nursing bed, in particular to a medical nursing bed. A patient defecates on the bed conveniently and is moved from a sickbed to a surgical bed conveniently, and the bed is easy to operate, convenient to use and easy to popularize. Plates are fixedly welded to the lower ends of a first side plate and a second side plate, and circular holes are formed in the plates; insertion rods are in clearance fit with the circular holes in the plates; a motor support is fixedly connected to the lower end of a first bed board through bolts; a motor is connected into the motor support through bolts; one end of a threaded rod is connected to a rotation shaft of the motor, the other end of the threaded rod is in clearance fit with the circular insertion hole, and the threaded rodis matched with a threaded hole; a third sliding block on a V-shaped rod is in clearance fit with a third sliding groove; a shaft is in clearance fit with a shaft hole; a circular rod is fixedly welded to the right end of the V-shaped rod; the lower end of a second rod is fixedly welded to the upper end of a baffle, and a first rod is fixedly welded to the upper end of the second rod; a supportingrod is fixedly welded to the lower ends of the first bed board, the first side plate and the second side plate.