Handrail subassembly for mooring roller

The invention discloses a handrail subassembly for a mooring roller. The mooring roller is arranged on a hull of a ship. The handrail subassembly comprises two handrail columns and a handrail body, wherein the two handrail columns are arranged on the hull at intervals and are positioned on two sides of the mooring roller; two ends of the handrail body are detachably connected to the two handrail columns detachably; and a gap is formed between the bottom of the handrail body and the top of the mooring roller. When the mooring roller is repaired, the handrail body is convenient to detach, space for detachment and repairing of the roller is reserved, fire operation is not required, and the roller is convenient to repair and detach. Moreover, two ends of the handrail body are fixed, so that the overall strength of the handrail body is guaranteed, vibration of the handrail body is avoided when an external force is applied to the handrail body, the safety and the reliability of the handrail subassembly are improved, the service life of the handrail subassembly is prolonged, and safety of passing people is guaranteed.