The utility model discloses a mud scraper, include: the walking cart, the drive arrangement who is suitable for drive walking cart to remove, the support, the one end of support with the walking cart is connected, and the cleaning shoe, the cleaning shoe is established the other end of support, the lower extreme of cleaning shoe is the cockscomb structure. According to the utility model discloses a mud scraper sets up to the cockscomb structure through the lower extreme with the cleaning shoe, reduces the area of contact of cleaning shoe and mud to can improve mud effectively and concentrate efficiency, reduce the deposition of mud, and then improve mud scraper's work efficiency effectively.