A branching air supply device for a refrigerator, the branching air supply device comprising: a housing provided with an air inlet and a plurality of air outlets (121,122,123), the housing comprises a base and a distributor cover; and the distributor cover is provided with a cover plate and a circumferential wall extending from the edge of the cover plate towards the base, the cover plate is provided with the air inlet, the circumferential wall is provided with the plurality of air outlets, and the end, far away from the cover plate, of the circumferential wall is mounted on the base; a regulating component configured to completely shield, partially shield or completely expose each air outlet in a controllable manner to adjust respective air discharging areas of the plurality of air outlets; an air feeding device arranged in the housing and configured to prompt the air flow to flow into the housing from the air inlet and to flow out of the housing via one or more air outlets of the plurality of the air outlets; and an air distributing device arranged in the housing and configured to guide air flowing out of the air feeding device and to enable the air flowing out of the air feeding device to flow to each air outlet with a predetermined ratio, characterized in that the air distributing device comprises a plurality of flow guiding plates (410,420), each of which extends from the inner surface of the cover plate towards the base; and each flow guiding plate (410,420) is configured to enable air flowing out of the air feeding device to flow to two adjacent air outlets (121,122,123) from the two sides of the flow guiding plate (410,420). a housing provided with an air inlet and a plurality of air outlets (121,122,123), the housing comprises a base and a distributor cover; and the distributor cover is provided with a cover plate and a circumferential wall extending from the edge of the cover plate towards the base, the cover plate is provided with the air inlet, the circumferential wall is provided with the plurality of air outlets, and the end, far away from the cover plate, of the circumferential wall is mounted on the base; a regulating component configured to completely shield, partially shield or completely expose each air outlet in a controllable manner to adjust respective air discharging areas of the plurality of air outlets; an air feeding device arranged in the housing and configured to prompt the air flow to flow into the housing from the air inlet and to flow out of the housing via one or more air outlets of the plurality of the air outlets; and an air distributing device arranged in the housing and configured to guide air flowing out of the air feeding device and to enable the air flowing out of the air feeding device to flow to each air outlet with a predetermined ratio, characterized in that the air distributing device comprises a plurality of flow guiding plates (410,420), each of which extends from the inner surface of the cover plate towards the base; and each flow guiding plate (410,420) is configured to enable air flowing out of the air feeding device to flow to two adjacent air outlets (121,122,123) from the two sides of the flow guiding plate (410,420).