The invention discloses a refrigerating system. The refrigerating system comprises a refrigerating system body and an electric control system. The refrigerating system body comprises a constant-speed compressor, electromagnetic valves, two or more cold storage cabinets and throttling devices. The electric control system comprises electromagnetic valves, relays and temperature controllers. The one-to-more refrigerating mode that the constant-speed compressor is used for independently controlling the cold storage cabinets with different refrigerant quantity demands is adopted, the refrigerant supply requirement of the cold storage cabinet with the small refrigerant quantity demand can be met under the condition that the cold storage cabinet with the small refrigerant quantity demand is opened only, and the situation that the body of the constant-speed compressor is frosted due to incomplete indoor evaporation, and consequentially the life of the constant-speed compressor is shortened is avoided; and meanwhile, the return air quantity required when the constant-speed compressor operates can be provided, so that the heat exchange effects of all evaporators are brought into full play, energy consumption is reduced, and the energy saving effect is achieved.