The utility model belongs to engineering machine of road surface and relates to subunit construction of road surface milling plane machine, in particular to a dual-driving rotor of road surface milling plane machine. The utility model comprises a rotor cylinder positioned at the inner side of a pair of fixing side plates. Both sides of the rotor cylinder respectively have a hydraulic motor installed on the side plates. Each hydraulic motor is evenly connected with a speed reducer whose body is positioned in the inner chamber of the rotor cylinder, and an output end of the speed reducer is fixedly connected with the inner wall of the rotor cylinder by a connecting plate. The utility model is the dual-driving rotor of road surface milling plane machine having the advantages of simple and compact structure, convenient mounting adjustment and large transmitted power.