The invention relates to a direction driving system for an automatic driving automobile. The direction driving system comprises a bearing frame, a vehicle steering mechanism, a transmission shaft, anauxiliary steering drive mechanism, an electromagnetic clutch, a steering wheel, an angle sensor and a controller. The bearing frame is of a frame structure, the vehicle steering mechanism is locatedon the lower end surface of the bearing frame, the transmission shaft, the auxiliary steering drive mechanism and the electromagnetic clutch are all embedded in the bearing frame, the auxiliary steering drive mechanism is mounted on the side surface of the bearing frame, the front end of the transmission shaft is mutually connected to the vehicle steering mechanism, and the tail end of the transmission shaft is mutually connected to the electromagnetic clutch. The steering wheel includes a rim, a spoke, a hub and a connecting shaft. On the one hand, the direction driving system can be flexiblyswitched between the automatic driving state and the manual driving state of the automobile according to use needs, on the other hand, the steering drive operation accuracy of the steering wheel canbe effectively improved when the steering wheel is operated, so that the reliability and safety of the operation control work of the automobile are greatly improved.