The invention discloses an elevator rope coded disc butting device. The elevator rope coded disc butting device comprises a base, a rubber wheel bracket, a connecting base and an ejector rod fixing base, wherein a bearing base is arranged on the base; the rubber wheel bracket is connected with the bearing base through a rotating shaft at the bottom, and can swing forwards and backwards through the fit between the rotating shaft and the bearing base; the rubber wheel bracket comprises clamping plate devices at the left and right sides; a rubber wheel is arranged between the two clamping plates, and is connected to the bearing base arranged on the clamping plates through a rubber wheel connecting shaft; an encoder is arranged on the rubber wheel connecting shaft; the connecting base is arranged on the base; the ejector rod fixing base is arranged on the connecting base, and is provided with an ejector rod; an ejector rod adjusting device is arranged on the ejector rod; the ejector rod is connected with a spring push rod through a spring; the spring push rod is connected with the rubber wheel bracket; and the antirust treatment is performed for all parts of the elevator rope coded disc butting device. The device is high in precision, low in error and strong in practicability.