The invention relates to a compact steering device for a nacelle-type electric propulsor, wherein each steering drive motor is connected with a steering gear box through a motor bolt; The steering gearbox is fixedly connected with the connecting plate through the gearbox screws; The output shaft of the steering gear box is connected with the steering pinion gear through a flat key; The steering pinion is meshed and connected with the internal meshing involute cylindrical gear on the inner ring of the steering support bearing, the outer ring of the steering support bearing is fixedly connectedwith the connecting plate, and the inner ring is fixedly connected with the nacelle base; The connecting plate is fixedly connected with the hull; An upper half of that slide re is fixedly connected with the connecting plate, and a lower half of the slide ring is fixedly connected with a pod base and rotate with the pod base. The upper half of the slide ring is fixedly connected with the connecting plate, and the lower half of the slide ring is fixedly connected with the pod base and rotates with the pod base. The steering device can drive the nacelle to realize horizontal 360 -degreesteering.It can meet the requirements of nacelle steering speed and steering torque. And it has good low-speed and low-frequency characteristics, so that the pod can be accurately positioned when approachingthe set position, and meet the steering accuracy requirements.