To provide a cleaner sheet capable of continuously washing with the sustained washing power by gradually releasing a detergent without adding the detergent.

The cleaner sheet 20 consists of a laminated sheet 10 comprising a surface layer 1, a detergent layer 3 and a liquid-impermeable layer 4 between the layers 1 and 3. The laminated sheet 10 is folded in such a way that the detergent layer 3 is put between the liquid impermeable layers. The detergent layer 3 is obtained by impregnating a liquid detergent in a layer of fiber material and removing a volatile component after that; or by applying a paste detergent to the layer of the fiber material. The cleaner sheet 20 is appropriately used for washing the tableware or cooking utensils.