The invention discloses a medical ward nursing device. The device comprises a table board, an air cylinder mounting plate is fixedly connected to the top end of a first supporting rod, a jacking air cylinder is fixedly arranged on the air cylinder mounting plate, and the jacking air cylinder is fixedly connected with a sleeve above the jacking air cylinder through a lifting rod; a second supporting rod is fixedly arranged on the portion, on one side of the first supporting rod, on the table board; a sheave is fixedly nested at the bottom end of the second supporting rod, and a driving motor isfixedly installed on the portion, on one side of the second supporting rod, on the table board; a tray is fixedly connected to the output end of the driving motor, a rotating disc is fixedly arrangedon the surface of the tray, and a notch is formed in one end of the rotating disc; a limiting pin is fixedly arranged on the portion, corresponding to the notch in the rotating disc, on the tray; theconvex surface of one end of the rotating disc is matched with the arc-shaped surface on the sheave. The device is compact in structure, the automatic bottle changing function can be achieved, the needle inserting function during bottle changing is also achieved, the infusion efficiency of a patient is greatly improved, and the situation that no people change liquid when medical staffs are busy is avoided.