Abstract: A screen washing machine that has brushes on both sides of a double trough and a controllable water spray pipe along one side. Each side of the double trough is U-shaped with the opened sides facing each other positioned horizontally in longitudinal parallel alignment with an opening between them. Two sets of dual legs support the double trough at a height approximately waist high on an operator. The legs and the two opposite sides of the double trough are not connected by upper cross supports, and a screen can be passed between them to be washed and scrubbed as it is moved through. The screen washing machine of this invention can be used to wash any flat object, a window, a door, and the like that can be passed between the double trough, and a single operator can manage the washing.