The invention discloses an ear canal cleaning device used for an ear-nose-throat department. The ear canal cleaning device used for the ear-nose-throat department comprises a handle, a fixing base, a gas cylinder, a gas injecting hole, a piston, a pushing rod, a fixing sleeve, a screw sleeve, a inserting barrel, an air injecting pipe, a leaking hole, an air cushion, a first flowing pipe, a first syringe, a second flowing pipe and a second syringe. The ear canal cleaning device used for the ear-nose-throat department is ingenious in structure and powerful in function; by using the device, firstly, ear wax foreign matters in an ear canal of a patient can be suck out of the ear canal, and secondly, according to the illness state of the patient, corresponding medicine liquid can be injected into the ear canal of the patient, and targeted treatment is conducted on the patient, and finally depth in the ear canal of the patient can be blocked through simple operation, and the medicine liquid and the ear wax foreign matters are effectively prevented from slipping into the depth of the ear canal of the patient in the operation process, so that cleaning for the ear canal of the patient is improved greatly, and operation of health care workers is facilitated.