Objective To control the incidence of infection during transportation process of supply room,reinforce the management of collecting and sending carts in supply room and ensure the effect of disinfection and safety of use.Methods Available chlorine of 500 mg/L was used to disinfect thein ner face of the clean carts,available chlorine of 1000 mg/L for the outer face,irradiation for 1 hour by ultraviolet lamp before use.The inner and outer faces of the dirty carts were disinfected by available chlorine of 1000 mg/L and irradiation for l hour by ultraviolet lamp.The wheels were flushed by clean water and then sterilized by available chlorine of 1000 mg/L"Clean"or"dirty"was indicated on the carts and they were strictly used and stored.The carts were covered with water-proof cloth,also indicated with"clean"or"dirty".Results The bacteriaJ colony was ≤5 cfu/m2 after disinfection on the clean carts and≤15 cfu/m2 on the dirty carts.Conclusions Disinfection by available chlorine and irradia- tion by ultraviolet lamp can reach the standard of sterile area,clean area and contamination area set by the Ministry of Health.This method is an effective measure in the control of transportation process of supply room with simple,feasible,economical and effective characteristics.