A refrigerating and freezing device, comprising: a cabinet defining a storage space and a compressor chamber extending in a lateral direction of the cabinet, a storage container being provided in the storage space, and the storage container having an air-conditioning and freshness-keeping space; an air-conditioning membrane assembly having at least one air-conditioning membrane and one oxygen-rich gas collecting cavity with a surrounding space communicated with the air-conditioning and freshness-keeping space, and which is configured to enable more oxygen than nitrogen in the surrounding space of the air-conditioning membrane assembly to enter into the oxygen-rich gas collecting cavity through the air-conditioning membrane; a suction pump, provided in the compressor chamber, an inlet end of the suction pump being communicated with the oxygen-rich gas collecting cavity of the air-conditioning membrane assembly through a pipeline, so as to pump the gas penetrating into the oxygen-rich gas collecting cavity out the storage container; and a fan; wherein the storage container is a drawer assembly characterized in that it comprises: a drawer cartridge having a forward opening and provided in the storage space; and a drawer body slidably mounted in the drawer cartridge to be operatively withdrawn from and inserted into the drawer cartridge from the forward opening of the drawer cartridge; wherein the suction pump is defined at a lateral end of the compressor chamber and the compressor is provided at the other end of the compressor chamber in the lateral direction, wherein an accommodating cavity communicating with the air-conditioning and freshness-keeping space is recessed in a top wall of the drawer cartridge to accommodate the air-conditioning membrane assembly, and wherein at least one first vent hole and at least one second vent hole spaced apart from the first vent hole are defined in a wall surface between the accommodating cavity in the top wall of the drawer cartridge and the air-conditioning and freshness-keeping space, so as to respectively communicate the accommodating cavity and the air-conditioning and freshness-keeping space in different positions; and wherein the fan is provided in the accommodating cavity to drive the air in the air-conditioning and freshness-keeping space to be returned to the air-conditioning and freshness-keeping space sequentially passing through the at least one first vent hole, the accommodating cavity and the at least one second vent hole. a cabinet defining a storage space and a compressor chamber extending in a lateral direction of the cabinet, a storage container being provided in the storage space, and the storage container having an air-conditioning and freshness-keeping space; an air-conditioning membrane assembly having at least one air-conditioning membrane and one oxygen-rich gas collecting cavity with a surrounding space communicated with the air-conditioning and freshness-keeping space, and which is configured to enable more oxygen than nitrogen in the surrounding space of the air-conditioning membrane assembly to enter into the oxygen-rich gas collecting cavity through the air-conditioning membrane; a suction pump, provided in the compressor chamber, an inlet end of the suction pump being communicated with the oxygen-rich gas collecting cavity of the air-conditioning membrane assembly through a pipeline, so as to pump the gas penetrating into the oxygen-rich gas collecting cavity out the storage container; and a fan; a drawer cartridge having a forward opening and provided in the storage space; and a drawer body slidably mounted in the drawer cartridge to be operatively withdrawn from and inserted into the drawer cartridge from the forward opening of the drawer cartridge; wherein the suction pump is defined at a lateral end of the compressor chamber and the compressor is provided at the other end of the compressor chamber in the lateral direction, wherein an accommodating cavity communicating with the air-conditioning and freshness-keeping space is recessed in a top wall of the drawer cartridge to accommodate the air-conditioning membrane assembly, and wherein at least one first vent hole and at least one second vent hole spaced apart from the first vent hole are defined in a wall surface between the accommodating cavity in the top wall of the drawer cartridge and the air-conditioning and freshness-keeping space, so as to respectively communicate the accommodating cavity and the air-conditioning and freshness-keeping space in different positions; and wherein the fan is provided in the accommodating cavity to drive the air in the air-conditioning and freshness-keeping space to be returned to the air-conditioning and freshness-keeping space sequentially passing through the at least one first vent hole, the accommodating cavity and the at least one second vent hole.