The invention discloses a driving device of an automatic oil injecting device. The structure comprises a rear sealing plate, a front end cover, a front sealing plate, a driving motor, fixing rivets, adouble-drive unit and a screw buckle; the rear sealing plate is closely attached to the right end behind the double-drive unit; the front end cover is in threaded connection with the right side of the driving motor and the axes are collinear; the front sealing plate is closely attached to the right end in front of the double-drive unit; the number of the fixing rivets is two or more, and the fixing rivets penetrate through the front sealing plate and are in threaded connection with the double-drive unit; the front sealing plate and the rear sealing plate are located on the same horizontal plane and are parallel with each other; and the screw buckle is in nail connection with the left side of the double-drive unit and is perpendicular to the left side of the double-drive unit. According tothe driving device of the automatic oil injecting device, due to the arranged double-drive unit, it can be achieved that one motor drives two or a plurality of rotting shafts at the same time, it isnot needed to additionally arrange a plurality of motors, a synchronous state is achieved while the device is driven in a multi-power manner, energy is stably supplied to the oil injecting device in amulti-stage manner, and the oil supplying efficiency and stability of an oil supplying device are improved.