Fuente: Wipo "precision agriculture" The invention discloses a lubricating device for a steel wire rope. The cleaning structure is arranged on the support, and a cleaning channel allowing the steel wire rope to penetrate through is formed in the cleaning structure; the clamping structure and the cleaning structure are arranged on the same side of the support, and the clamping structure is used for clamping the steel wire rope penetrating out of the cleaning channel; the oil outlet structure is arranged above the clamping structure and used for smearing lubricating oil on the steel wire rope clamped by the clamping structure; the collecting structure is arranged below the clamping structure and used for collecting the lubricating oil dripping from the clamping structure; through the arrangement, lubricating oil can be automatically smeared on the steel wire rope, it can be guaranteed that the lubricating oil is smeared evenly, and the purposes of saving manpower, improving the smearing work efficiency and avoiding the manual smearing risk are achieved.