Abstract：The utility model discloses a containing device for medical instruments. The utility model belongs to the technical field of medical instruments, and relates to a medical instrument storage box whichcomprises a box body, a containing groove is formed in the middle of the front face of the box body, electric telescopic rods are fixedly installed at the four corners of the groove wall of the bottomend of the containing groove, the telescopic ends of the two electric telescopic rods on the same side are fixedly connected with the two sides of the bottom ends of fixing blocks, and sliding grooves are formed in the top ends. The utility model discloses a containing device for medical instruments. A micro liquid suction pump is mounted in the liquid storage tank; the disinfectant in the liquidstorage tank can be conveniently sprayed on the surface of the medical instrument in the placement box through the spray head for disinfection; by means of the electric heating wire installed on thegroove wall of the bottom end of the containing groove, on one hand, high-temperature disinfection is achieved, the medical instrument is further disinfected, meanwhile, sprayed disinfectant can be evaporated, and the disinfectant is prevented from adhering to the surface of the medical instrument.