A washing machine of the embodiment includes a washing tank located in a washing machine body, and used for containing washings and executing washing; an entrance for putting washings in the washing tanks; a lid capable of enclosing the entrance in an opening and closing mode; a lid opening and closing detection unit for detecting the opening and closing of the lid; an operation part used for setting and instruction; a display part used for displaying; and a control device used for executing washing operation. The control device has a washing-amount display control means for displaying a predetermined amount of the washing amount used as washing in the display section before starting the washing operation, and in a normal period, a washing-amount display control means displays a washing-amount in a preset first time period; in addition, in a period from connecting the power supply of a washing machine body to the displaying of a washing-amount, when the cover is detected to be closed from an opening state by the lid opening and closing detecting unit, the display of a washing-amount is executed in a second time shorter than a first time.