A refrigerator, comprising: a refrigerator body, a door body, an air-conditioning membrane assembly and an air pump assembly, wherein the refrigerator body defines a storage space and a compressor chamber therein, a storage container is arranged in the storage space, and a freshness-keeping space is defined inside the storage container; the door body is arranged on the front surface of the refrigerator body to close the storage space; the air-conditioning membrane assembly is mounted to the storage container, and the surrounding space of the air-conditioning membrane assembly is communicated with the freshness-keeping space, the air-conditioning membrane assembly comprises at least one air-conditioning membrane and an oxygen-rich gas collection chamber, and is configured to allow more oxygen than nitrogen in airflow in a surrounding space of the air-conditioning membrane assembly to pass through the air-conditioning membrane and enter the oxygen-rich gas collection chamber; the air pump assembly is arranged inside the compressor chamber, and the air pump assembly comprises an air pump, wherein an inlet end of the air pump is communicated with the oxygen-rich gas collection chamber in a controlled manner via a pipeline and a pipeline switching mechanism, for pumping gas in the oxygen-rich gas collection chamber to the outside of the freshness-keeping space, such that the actual content of oxygen in the freshness-keeping space is in a range of 2% to 19%; characterized in that the air pump assembly further comprises: a mounting base plate mounted to the bottom surface of the compressor chamber through a plurality of damping foot pads; and a sealed case mounted to the mounting base plate, the air pump being mounted in the sealed case. a refrigerator body, a door body, an air-conditioning membrane assembly and an air pump assembly, wherein the refrigerator body defines a storage space and a compressor chamber therein, a storage container is arranged in the storage space, and a freshness-keeping space is defined inside the storage container; the door body is arranged on the front surface of the refrigerator body to close the storage space; the air-conditioning membrane assembly is mounted to the storage container, and the surrounding space of the air-conditioning membrane assembly is communicated with the freshness-keeping space, the air-conditioning membrane assembly comprises at least one air-conditioning membrane and an oxygen-rich gas collection chamber, and is configured to allow more oxygen than nitrogen in airflow in a surrounding space of the air-conditioning membrane assembly to pass through the air-conditioning membrane and enter the oxygen-rich gas collection chamber; the air pump assembly is arranged inside the compressor chamber, and the air pump assembly comprises an air pump, wherein an inlet end of the air pump is communicated with the oxygen-rich gas collection chamber in a controlled manner via a pipeline and a pipeline switching mechanism, for pumping gas in the oxygen-rich gas collection chamber to the outside of the freshness-keeping space, such that the actual content of oxygen in the freshness-keeping space is in a range of 2% to 19%; characterized in that the air pump assembly further comprises: a mounting base plate mounted to the bottom surface of the compressor chamber through a plurality of damping foot pads; and a sealed case mounted to the mounting base plate, the air pump being mounted in the sealed case. a mounting base plate mounted to the bottom surface of the compressor chamber through a plurality of damping foot pads; and a sealed case mounted to the mounting base plate, the air pump being mounted in the sealed case.