The utility model provides a vacuumizing device for a storage box of a refrigerator and a refrigerator. The vacuumizing device comprises a machine case, a base and a supporting plate, wherein the machine case is connected with the upper portion of the supporting plate, the base is connected to the lower portion of the supporting plate, a controller, a transmission device and a vacuumizing device body are arranged in the machine case, the transmission device and the vacuumizing device body are both electrically connected with the controller, the transmission device is used for controlling on-off of the vacuumizing device body and the storage box to be vacuumized under the control of the controller, and the vacuumizing device body is used for vacuumizing the storage box. The utility model further provides a refrigerator. The vacuumizing device is simple in overall structure, and automatic vacuumizing is achieved. When the vacuumized storage box is placed at a low temperature, food is kept in a specific negative pressure state, aerobic bacterial reproduction is effectively restrained, food oxidization is slowed down, food is prevented from going moldy or bad, and vitamin losses are reduced.