Disposable endoscope

The utility model discloses a disposable endoscope. The disposable endoscope comprises an operating part, a butt joint part connected with the operating part, an insertion part connected with the butt joint part, and a bent part connected with the insertion part. The operating part comprises a first shell, a locking wheel, an adjusting wheel and a first buckle device. An extension sleeve is arranged on the first shell. The first buckle device comprises a first support, a wire plate, a tube sleeve and a contact pin. The wire plate is composed of a plate body, a slide hook and a rope hooking hole. The butt joint part comprises a second shell, a biopsy tube, a water/air through tube and a second buckle device. An electromagnetic valve connected with the water/air through tube is arranged in the second shell. The second buckle device comprises a second support, a PCB and a connecting plate. The connecting plate and the second support intersect with each other. The disposable endoscope has the advantages of being sanitary, high in use efficiency, convenient to use, simple in structure, flexible in operation and accurate in observation angle.