The invention discloses a device for cleaning, sterilizing and drying medical instruments, which comprises a box body, a through hole is arranged in the middle of the box body, and an independent soaking chamber, a cleaning chamber, a drying chamber and a drying chamber are sequentially arranged in the box body. Disinfection chamber; a lifting assembly is provided in the through hole, a mounting plate is provided above the lifting assembly, a rotating assembly is provided on the mounting plate, and a horizontal connecting rod is connected to the rotating assembly, and the horizontal connecting rod is sequentially below An entrance cover, a suspension shaft and a tray are provided; medical instruments are placed on the tray and / or the suspension shaft, and enter and exit the soaking chamber, the cleaning chamber, the drying chamber and the disinfection chamber sequentially through the entrance cavity for cleaning, drying and disinfection operations; this device integrates the functions and operations of medical instrument cleaning, drying and disinfection through the setting of the box body, and has an independent chamber for non-interference cleaning, and the mutual Less impact, and easy to use, good cleaning effect.