The utility model relates to a sweet potato is cut seedling and digs potato all -in -one, including the locomotive, the locomotive rear portion is connected with the frame of taking the wheel, the bottom is provided with the row who cuts the seedling and cuts before the frame, and the bottom is provided with the digger blade after the frame, arrange and to cut the row's of the going up tooth that removes about with including rigid's the lower row of tooth, arrange and to cut one side and be provided with fan -shaped baffle, arrange and cut the rear end and be provided with and dial the seedling baffle with what the opposite side was guided into to the sweet potato seedling, the digger blade is paliform, and its front end is the closed angle describes, the digger blade is the high arc in middle low both ends. This device has the seedling of cutting and digs the potato with quick -witted operation, efficiency height, breakage rate low grade characteristics.