A refrigerator, comprising: one or more storage portions, a corresponding storage space being defined in each storage portion; and a refrigeration module, comprising: a module body, defining a mounting space; and a refrigeration system, disposed in the mounting space and used for generating cooling capacity; wherein a cold supply port is disposed in the module body, the cold supply port is configured to be detachably connected to an external pipeline (300, 400), and cooling capacity generated by the refrigeration system is supplied into the external pipeline (300, 400) by the cold supply port, wherein the refrigeration system is a compression refrigeration system having a compressor, a condenser and an evaporator; the module body comprises: an evaporator compartment in which the evaporator is disposed; and a compressor compartment, disposed separately from the evaporator compartment, the compressor and the condenser being disposed in the compressor compartment, wherein the evaporator compartment comprises a box body and a cover plate; the box body has a bottom wall and side walls, and the box body defines an upward opening; the cover plate is located above the box body, and used for closing the opening, and a containing cavity of the evaporator is defined between the cover plate and the box body; the cold supply port is formed in the rear end of the cover plate in an up-down direction, wherein an air return port is formed in the front end of the cover plate in the up-down direction, the air return port is configured to be detachably connected to an external pipeline (300, 400), and external air flows into the containing cavity via the air return port, wherein the one or more storage portions and the refrigeration module are disposed separately, and the cooling capacity flows out of the refrigeration module from the cold supply port and then flows into the storage portion via the pipeline, wherein an electrical connection port is further formed in the rear end of the cover plate in the up-down direction, the electrical connection port is configured to be detachably connected to an external pipeline (300, 400) having a power supply line, and the power supply line is introduced into the refrigeration module via the electrical connection port; the electrical connection port is formed in the lateral portion of the cold supply port in a transverse direction. a module body, defining a mounting space; and a refrigeration system, disposed in the mounting space and used for generating cooling capacity; wherein a cold supply port is disposed in the module body, the cold supply port is configured to be detachably connected to an external pipeline (300, 400), and cooling capacity generated by the refrigeration system is supplied into the external pipeline (300, 400) by the cold supply port, wherein the refrigeration system is a compression refrigeration system having a compressor, a condenser and an evaporator; the module body comprises: an evaporator compartment in which the evaporator is disposed; and a compressor compartment, disposed separately from the evaporator compartment, the compressor and the condenser being disposed in the compressor compartment, wherein the evaporator compartment comprises a box body and a cover plate; the box body has a bottom wall and side walls, and the box body defines an upward opening; the cover plate is located above the box body, and used for closing the opening, and a containing cavity of the evaporator is defined between the cover plate and the box body; the cold supply port is formed in the rear end of the cover plate in an up-down direction, wherein an air return port is formed in the front end of the cover plate in the up-down direction, the air return port is configured to be detachably connected to an external pipeline (300, 400), and external air flows into the containing cavity via the air return port, wherein the one or more storage portions and the refrigeration module are disposed separately, and the cooling capacity flows out of the refrigeration module from the cold supply port and then flows into the storage portion via the pipeline, wherein an evaporator compartment in which the evaporator is disposed; and a compressor compartment, disposed separately from the evaporator compartment, the compressor and the condenser being disposed in the compressor compartment, wherein the evaporator compartment comprises a box body and a cover plate; the box body has a bottom wall and side walls, and the box body defines an upward opening; the cover plate is located above the box body, and used for closing the opening, and a containing cavity of the evaporator is defined between the cover plate and the box body; the cold supply port is formed in the rear end of the cover plate in an up-down direction, wherein an air return port is formed in the front end of the cover plate in the up-down direction, the air return port is configured to be detachably connected to an external pipeline (300, 400), and external air flows into the containing cavity via the air return port, wherein the one or more storage portions and the refrigeration module are disposed separately, and the cooling capacity flows out of the refrigeration module from the cold supply port and then flows into the storage portion via the pipeline, wherein