The utility model discloses a seeder is with novel ridging shaping device, it includes left side board, altitude mixture control board, angle adjusting plate, frame, connecting rod, compression spring, spring plate, right side board, fixing bolt nut, main scraper blade. The ground ridge shape form that this scraper blade reshaper is had suffered is neat, the ridge face levels, follow -up tectorial membrane is ensured and the ridge face can be hugged closely, do not blown for the protection plastic film and destroyed and improvement potato seedling growth rate, play fine effect, can be according to climatic conditions of those years, the potato seed variety, the ground block size, seeding situations such as roughness, the decision ridge is high, the row spacing size, at any time, adjust the height and the row spacing degree of scraper blade reshaper, ridge shape unevenness and the nonadjustable shortcoming of size that current seeder exists have been solved effectively.