A UV sterilization device for a board-type kitchenware includes a base with a driving member being received therein and defining a first motor, a left work-board, a right work-board, with a receiving room being formed between the left and right work-boards for receiving the board-type kitchenware therein, and a UV sterilization module connected to the first motor, longitudinally arranged on the inside of the left and right work-boards and horizontally sliding relative to the left and right work-boards. The first motor is configured to drive the UV sterilization module to slide so as to sterilize the board-type kitchenware received in the receiving room. The present structure not only can have a good disinfection and bactericidal effect on the harmful bacteria, pathogenic bacteria and molds left on the kitchenware with a minimize disinfection time, but also can reciprocate sterilization of the board-type kitchenware to achieve all-round sterilization by simple operation.
