PURPOSE: To prevent remnants from entering and remaining between a water feed pipe and the inner wall surface of a washing chamber without any increase in size of the washing chamber in a dish washer in which the water feed pipe for feeding washing water to a jetting member for jetting water to a dish basket placed in the upper part of the washing chamber is arranged along the inner wall surface of the washing chamber.

CONSTITUTION: A water supply port 16 is formed above an upper water feed pipe 10 and water is supplied from the water supply port 16 to a space between the upper water feed pipe 10 and the inner wall surface of the washing chamber 3, whereby remnants entering between them is washed away by the water. A groove part where the upper water feed pipe is laid is formed on the inner wall surface of the washing chamber 3 and water is supplied through the groove part, so that water is prevented from spreading so as to more surely wash away the remnants between the upper water feed pipe 10 and the inner wall surface of the washing chamber 3.