The invention discloses an anti-sediment structure for an electromobile disk brake, which comprises a hub, an axle, a disk brake assembly installed on the end part of the axle, a disk arranged on the side end of the hub and a protecting hood, wherein a brake pad used for clamping the edge of the disk is arranged in the disk brake assembly; the protecting hood extends from top to bottom and coversthe two sides of the surface of the disk in a partial enclosure structure; and the protecting hood is connected with the disk brake assembly through a connecting gear. Since the protecting hood reduces the effects of dust, sediment, rain and other external conditions on the disk brake, the service life and braking performance of the disk brake are greatly enhanced.