PROBLEM TO BE SOLVED: To provide a ridge coating machine including an attachable/detachable ridge upper face shaping part.SOLUTION: A ridge coating machine includes: a ridge slope face shaping part configured by connecting plural slope face blade plates in a circumferential direction and shaping a slope face of a ridge by an axial rotation a ridge upper face shaping part including a base end part fastened in an apex of the ridge slope face shaping part and shaping an upper face of a ridge by axial rotation and a cover ridge upper face shaping part inserted inside with the ridge upper face shaping part in a nested manner, covering a side wall face and apex wall face of the ridge upper face shaping part, and being attachable/detachable with respect to the ridge upper face shaping part. The cover ridge upper face shaping part includes a ridge shoulder shaping part shaping a shoulder of a ridge. A member suppressing intrusion of soil to an inner side of the ridge shoulder shaping part is arranged in an inner side face of the ridge shoulder shaping part.SELECTED DRAWING: Figure 7