The invention relates to an automatic side face winding and coating device of large slenderness ratio propellant, and belongs to the field of mechanical electronic automation. In order to solve the problems of massive labor operation, interrupted production, big labor intensity, and low instinct safety level during the side winding and coating processes in the prior art, the invention designs an automatic side face winding and coating device of a horizontal single station; the device is mainly composed of a frame, an anti-explosion power distribution box, a spindle box, an air control system, a three-jaw chuck, a tail bed, an adjusting plate, a winding machine, a glue pushing head, and others. Through theoretical and experimental verification, the device can realize automatic glue coating, winding, tension control, gluing continuity, and automatic operation on the basis of ensuring the safety and product quality. The production process can realize man-machine isolation. After winding and coating, the drug pillar quality can meet the quality index requirement of technical specification, realize the continuity, automation, and man-machine isolation of the side face winding and coating process, improve the production efficiency, instinct safety and product quality.