The invention discloses a springback mud scraping device for a mud scraper, wherein the springback mud scraping device comprises a working bridge, walking wheels, a top plate, a central shaft, a driving motor, a transmission belt, a driven wheel, a floating plate, a connecting rod, a fixed rod, a fixed plate, a mud scraping plate, a base and a mud collecting tank; the mud scraping plate comprisesa screw rod, a nut, a mounting plate, a spring and a mud scraping plate body; through the rotation of the central shaft to drive the rotation of the fixed plate, the mud scraping plate rotates along with the fixed plate and cleans mud into the mud collecting tank, when the mud scraping plate encounters mud difficult to treat in the rotating process, the mud scraping plate body inclines in the reverse direction of rotation, and the mud difficult to treat is cleaned through springback of the spring; after the mud scraping plate body is abraded, the mud scraping plate body is in threaded connection with the mounting plate through the screw rod, and the mounting plate, the spring and the mud scraping plate body are dismounted and replaced; mud blocks difficult to treat are cleaned through resilience of the spring, large abrasion to the mud scraping plate body is avoided, the mud scraping plate can be dismounted and mounted in a segmented mode, and the maintenance cost is saved.