The invention provides a medical needle-withdrawal bandage-pasting assembly. The medical needle-withdrawal bandage-pasting assembly includes a bracket, wherein a binding belt is arranged on the bracket, a winding roller and a driving source are arranged on the bracket, and a bandage pasting part is also included; the bandage-pasting part includes a bandage-pasting frame, a trigger channel and a sliding groove are arranged on the bandage-pasting frame, and the trigger channel penetrates the bandage-pasting frame horizontally; a drip injection head passes through the trigger channel, a sliding block and a sliding spring are arranged in the sliding groove, and a receiving groove is formed in the sliding block; a bandage-pasting block and a bandage-pasting spring are arranged in the receivinggroove, an adhesive bandage can be attached to the outer surface, away from the bottom of the receiving groove, of the bandage-pasting block, and the bandage-pasting spring is used for driving the bandage-pasting block to move outside the receiving groove; a trigger part is arranged in the bandage-pasting frame, the trigger part includes a trigger end and a limiting end, and a limiting slot is formed in the side wall of the sliding block; and the limiting end is inserted into the limiting slot so as to limit sliding movement of the sliding block. Needle withdrawal and adhesive bandage pastingcan be completed by a patient with only one hand under the assistance of the medical needle-withdrawal bandage-pasting assembly, so that the overall medical experience of the patient is improved greatly.