The invention provides a nursing bed with a waist adjusting function. The nursing bed comprises a bed frame, a waist and abdomen adjusting assembly, a back lifting mechanism and a bed board mechanism,wherein the bed board mechanism comprises a head pillow board, a back supporting board, a waist supporting board, a hip supporting board, leg supporting boards and foot supporting boards; a headrestelectric push rod of the back lifting mechanism is hinged to the back supporting board, the push rod end of the headrest electric push rod is hinged to the head pillow board, a waist and back electricpush rod is hinged to the bed frame, and the push rod end of the waist and back electric push rod is hinged to the back supporting board; and the waist and abdomen adjusting assembly comprises a waist and abdomen adjusting electric push rod, the waist and abdomen adjusting electric push rod is fixed in the bed frame, the push rod end of the waist and abdomen adjusting electric push rod is alignedwith the waist supporting board, and an adjusting notch for the waist supporting board to swing by a limited angle is formed in the position, corresponding to the waist supporting board, of the bed frame. The nursing bed has the advantages that the structure is reasonable, use is convenient, the waist and abdomen adjusting function is achieved, and when the nursing bed with the waist adjusting function is used for back lifting, a patient keeps a back lifting posture, and the comfort degree of the body of the patient is improved.