A corn root stubble gathering device is mainly composed of a stubble pick-up and push mechanism, a first-level throwing and conveying mechanism, a bionic roller concave plate soil removal mechanism, asecond-level throwing and conveying mechanism, a gathering system, a rack, a load-bearing wheel, an electromagnetic clutch and a transmission device; the stubble pick-up and push mechanism is connected with a bearing and fastens a bearing seat on the rack through bolts; the first-level throwing and conveying mechanism is installed between the stubble pick-up and push mechanism and the bionic roller concave plate soil removal mechanism; the first-level throwing and conveying mechanism is installed between the bionic roller concave plate soil removal mechanism and the gathering system; the gathering system is mainly composed of a stubble gathering tank and an automatic discharging system. The structure of the invention is simple and compact, and the picking, conveying, soil removal and collection processes are performed in a smooth and orderly manner. The power consumption is low, the working efficiency is high, the operation is stable, and the manufacturing cost is reduced.