A refrigeration system, comprising: an indoor heat exchange module configured for refrigerant to absorb heat; and a plurality of outdoor heat exchange modules configured for the refrigerant to dissipate heat, each of the outdoor heat exchange modules comprising a compression device and a condensing device; the outdoor heat exchange module being switchable between an active mode and a standby mode; in the active mode, the outdoor heat exchange module being connected to the indoor heat exchange module; in the standby mode, the outdoor heat exchange module being disconnected from the indoor heat exchange module, and the compression device of the outdoor heat exchange module being in an operation status; wherein some of the outdoor heat exchange modules are in the active mode, and the others are in the standby mode, characterized in that the compression device comprises an air suspension compressor; the air suspension compressor is connected between an output terminal of the indoor heat exchange module and an input terminal of the condensing device; and in that the compression device further comprises an air supply circulation pipeline connected to the air suspension compressor; when the outdoor heat exchange module is in the standby mode, the air suspension compressor of the outdoor heat exchange module is connected to the air supply circulation pipeline and drives the refrigerant to circulate in the air supply circulation pipeline, in that the outdoor heat exchange module further comprises a liquid storage portion; and the liquid storage portion is connected between an output terminal of the condensing device and an input terminal of the indoor heat exchange module, and is configured to store the refrigerant output from the condensing device; in that the air supply circulation pipeline comprises a liquid conversion portion, a first liquid pump and a gas conversion portion which are sequentially connected in a direction from an output terminal to an input terminal of the air suspension compressor; the liquid conversion portion is configured to convert the refrigerant output by the air suspension compressor from a gas state to a liquid state, and deliver the refrigerant to the liquid storage portion; the gas conversion portion is connected between the liquid storage portion and the input terminal of the gas suspension compressor, and is configured to convert the refrigerant in the liquid storage portion from the gas state to the liquid state; the first liquid pump is connected between the liquid storage portion and the gas conversion portion, and is configured to pump the refrigerant in the liquid storage portion to the gas conversion portion; and in that both the first liquid pump and the air suspension compressor are powerable by an uninterruptible power system. an indoor heat exchange module configured for refrigerant to absorb heat; and a plurality of outdoor heat exchange modules configured for the refrigerant to dissipate heat, each of the outdoor heat exchange modules comprising a compression device and a condensing device; the outdoor heat exchange module being switchable between an active mode and a standby mode; in the active mode, the outdoor heat exchange module being connected to the indoor heat exchange module; in the standby mode, the outdoor heat exchange module being disconnected from the indoor heat exchange module, and the compression device of the outdoor heat exchange module being in an operation status; wherein some of the outdoor heat exchange modules are in the active mode, and the others are in the standby mode, characterized in that the compression device comprises an air suspension compressor; the air suspension compressor is connected between an output terminal of the indoor heat exchange module and an input terminal of the condensing device; and in that the compression device further comprises an air supply circulation pipeline connected to the air suspension compressor; when the outdoor heat exchange module is in the standby mode, the air suspension compressor of the outdoor heat exchange module is connected to the air supply circulation pipeline and drives the refrigerant to circulate in the air supply circulation pipeline, in that the outdoor heat exchange module further comprises a liquid storage portion; and the liquid storage portion is connected between an output terminal of the condensing device and an input terminal of the indoor heat exchange module, and is configured to store the refrigerant output from the condensing device; in that the air supply circulation pipeline comprises a liquid conversion portion, a first liquid pump and a gas conversion portion which are sequentially connected in a direction from an output terminal to an input terminal of the air suspension compressor; the liquid conversion portion is configured to convert the refrigerant output by the air suspension compressor from a gas state to a liquid state, and deliver the refrigerant to the liquid storage portion; the gas conversion portion is connected between the liquid storage portion and the input terminal of the gas suspension compressor, and is configured to convert the refrigerant in the liquid storage portion from the gas state to the liquid state; the first liquid pump is connected between the liquid storage portion and the gas conversion portion, and is configured to pump the refrigerant in the liquid storage portion to the gas conversion portion; and in that both the first liquid pump and the air suspension compressor are powerable by an uninterruptible power system.