The invention discloses a medical lying bed for examination in ear-nose-throat department. The medical lying bed structurally comprises a base, an ascending and descending rack, a fixing device, a fixing binding belt, a bed plate, a bed plate soft pad, a plum blossom knob screw nut, an arm plate, an arm plate soft pad, a head plate soft pad, a head plate, support foot pads, an ascending and descending device and a first hinge shaft, wherein the support foot pad is vertically arranged on each of the four corners of the bottom of the base in a screw bolt connection mode. The medical lying bed for examination in ear-nose-throat department has the advantages that the ascending and descending device is arranged inside the base; a step motor and a lead screw are used in a matched way for controlling the ascending and descending of the examination lying bed; the rotating movement is converted into the linear movement; the lead screw transmission precision is high; the friction resistance is very small; the creeping phenomenon of sliding movement cannot occur; the precise micro feeding is enabled to be realized; the rotation of the step motor is the operation step by step at the fixed angle, so that the accurate positioning goal is achieved; uncomfortable feeling cannot be caused on the patient; meanwhile, the rotation of the lying bed can be controlled through a second step motor.