The invention discloses a treatment box for disposable medical instruments. The treatment box for the disposable medical instruments comprises a box body and a pull type material collecting groove. A first breaking wheel is arranged at the left end of an inner cavity of the box body. The first breaking wheel is in transmission connection with a motor through a belt. The motor is arranged on the upper surface of a motor support. A second breaking wheel is arranged at the position corresponding to the right side of the outer surface of the first breaking wheel. The second breaking wheel is connected with a telescopic rod through a connecting shaft. The telescopic rod is arranged on the left side of a telescopic support. A sliding groove is arranged at the connection position between the connecting shaft and the box body. A discharging baffle is arranged at the lower end of the inner cavity of the box body. The pull type material collecting groove is arranged at the lower end of the outer surface of the discharging baffle. Because the sliding groove is arranged at the connection position between the connecting shaft and the box body of the treatment box for the disposable medical instruments, the demand of people for breaking treatment of medical instruments of any size can be met under the action of the telescopic rod; and in this way, the problem that lawbreakers recycle the medical instruments, so that cross infection is caused is completely solved.