The invention discloses a roller washing machine. The roller washing machine comprises a roller, wherein the roller is internally provided with an impeller, the outer portion of the roller is providedwith a driving motor, the driving motor comprises a first rotor and a second rotor which are independently arranged and can be separately driven to rotate, the first rotor is meshed with the impeller, and the second rotor is meshed with the roller. By setting the driving motor into the first rotor and the second rotor which work independently, the roller and the impeller are driven to rotate by different rotors respectively, so that the purpose is achieved that the first rotor and the second rotor are independently driven separately or simultaneously rotate when electrified at the same time,thereby achieving the controllable effect of driving the roller and the impeller separately or simultaneously. The roller washing machine has the advantages that rotation states of the roller and theimpeller of the roller washing machine are adjusted in a controllable way, so that the roller washing machine is controlled to correspondingly perform washing and dewatering processes. By making the impeller and the roller generate differential rotation, in a washing program of the washing machine, the intensity of the water flow is increased, and the washing ratio is increased.