The invention relates to a machine for removing soil on paddy rice roots. The machine comprises a mounting board, the lower end face of the mounting board is uniformly provided with three root soil removers through bolts; the upper end face of the mounting board is provided with a first hydraulic cylinder, the top of the first hydraulic cylinder is connected to a sleeve in thread connection, and the upper end of the sleeve is provided with a support board through screws; four first telescoping rods are symmetrically mounted to left and right sides of the upper end face of the mounting board, and tops of the four first telescoping rods are mounted to the lower end face of the support board; two pairs of fixing columns are symmetrically welded to two sides of the lower end face of the support board, a mounting column is mounted between lower ends of each pair of fixing columns, a fixing shaft is welded to the outside of each mounting column, and the outer wall of each fixing shaft is provided with a walking wheel via a bearing; and the front side of the upper end face of the support board is provided with two armrests via bolts. The machine for removing soil on paddy rice roots can quickly separate the paddy rice roots at a high efficiency, and a novel approach for utilizing renewable biomass energy of the paddy rice roots is provided.