The invention discloses a visual protection device of a routing inspection pipeline dredging robot. The device comprises a camera, a hollow rotation frame, a movable protection assembly and a scrapingstrip assembly; the hollow rotation frame is connected to the front end of a robot body, the camera is arranged in the hollow rotation frame, the two ends of the scraping strip assembly are connectedto the hollow rotation frame, the inner side of the scraping strip assembly is pressed on the end of the camera, a static protection cover is arranged on the camera, a rotation hinge head is fixed tothe hollow rotation frame, one end of the movable protection cover is connected to the rotation hinge joint, a movable cover driver is fixed to the rear side of the hollow rotation frame, and the movable cover driver stretches out or draws back to drive the movable protection cover to be opened or closed. Through cooperative effect of dynamic protection, static protection and wiping cleaning, inthe dredging work process, dirt is prevented from being attached to the lens, meanwhile, the lens can be automatically wiped, machine visual identity definition and effectiveness are improved, and theadaptation of the inspection robot to the complex environment is improved.