To provide an endoscope washing device that can open and close an opening of a device body extending to a lower direction, and includes a door body not protruding forward when a door is opened and capable of maintaining a folded state in a top side of the device body.SOLUTION: A door body 40 of an endoscope washing device 1 has a turning shaft 91 being foldable and extending to the width direction X positioned in the upper surface 4 side, and multiple door panels 41-44 pivotably connected with each other through a pair of hinge parts 92A-92C opposed in the width direction X. The door panels 41-44 have a first door panel 41, second door panel 42, third door panel 43 and fourth door panel 44 sequentially arranged from the top to the bottom at closing a door. The first door panel 41 is turned earlier than other door panels 42-44, and moves to the upper part while turning in the order of the second door panel 42, third door panel 43, fourth door panel 44.SELECTED DRAWING: Figure 14
