The invention provides a storage box and a storage cabinet provided with the storage box. The storage cabinet comprises a cabinet body and a door body for opening or closing the cabinet body, wherein the storage box is arranged inside the cabinet body; and a discharge passage, which is butted with the opening when being closed, is arranged on the door body. A storage area, a discharge area, an ejecting mechanism and a baffle plate are arranged inside the storage box; the storage area is used for storing articles; the discharge area is arranged in a mode of being adjacent to the storage area; the ejecting mechanism is arranged in the discharge area; and the baffle plate is arranged at the front ends of the storage area and the discharge area. The baffle plate comprises an opening which is formed at the front side of the ejecting mechanism. The storage area comprises a guide plate which is arranged in a mode of being inclined towards the ejecting mechanism. The ejecting mechanism comprises an ejecting block and a driving mechanism; the ejecting block is arranged in a mode of being relative to the opening; and the driving mechanism is used for driving the ejecting block to move towards or away from the opening.