The invention relates to a separate type walking aid nursing bed, which is characterized in that the separate type walking aid nursing bed comprises a fixed bed surface part, a separate bed surface part, a bed frame, a back rising mechanism and a leg bending mechanism; the fixed bed surface part is in a U-shape; the separate bed surface part just can be inserted in the U-shaped groove of the fixedbed surface part to cause the fixed bed surface part and the separate bed surface part to form a rectangular integrated bed surface; the bed frame comprises an integrated supporting frame with castersand a movable supporting frame which is connected with the integrated supporting frame through a rotary connecting shaft; the back rising mechanism is composed of a four-bar mechanism and an electric operator; the leg bending mechanism comprises a left and a right supports which are symmetrically and fixedly with the integrated supporting frame; a left and a right motors are respectively arranged on the left and the right supports; the output shafts of the left and the right motors are respectively connected with a left and a right gear pairs; the left and the right gear pairs are respectivel y connected with one end of a left crank and one end of a right cranks; the other ends of the left and the right cranks are respectively and fixedly connected with the fixed bed surface part.