The invention provides a rice brushing machine for flexibly removing rice bran. The rice brushing machine comprises a case, a hopper, brush rollers, rice bran powder sifters, a transmission wheel setand collecting bins. The hopper is arranged on the case, the brush rollers comprise axially rotating rollers and brushes covering the peripheries of the rollers and are parallel pairwise, brushes on the two parallel brush rollers are abutted to each other, the rice bran powder sifters sleeve the peripheries of the brush rollers, two ends of each rice bran powder sifter are fixedly connected to theinner wall of the case through connecting rods, the transmission wheel set comprises a driving wheel, driven wheels, a steering wheel, a tensioning wheel and a conveying belt, the conveying belt is tensioned on the transmission wheel set in a closed manner, the collecting bins comprise rice bran powder collecting bins and honed rice collecting bins, the rice bran powder collecting bins are positioned below the rice bran powder sifters, and the honed rice collecting bins are positioned below the centers of the pairwise parallel brush rollers. Compared with the prior art, the rice brushing machine for flexibly removing the rice bran can effectively remove rice bran chippings, cost is reduced, excessive polishing of unpolished rice is prevented, the germ-remained rate is increased, and broken rice rate is reduced.