A coating apparatus for a vane which is equipped with a metal sheath for covering a leading edge portion of a vane body (Va), the coating apparatus comprising: a jig which supports the vane; a nozzle which sprays paint onto a vane surface (Vd) of the vane body (Va) except for the metal sheath of the vane supported by the jig; a robot which moves the nozzle; and a control unit which controls a paint spraying operation of the nozzle and the robot, wherein the jig includes a movable covering body which covers the metal sheath by separably overlapping the metal sheath and covers a boundary portion (Ta) between a lateral edge portion (Sr) of the metal sheath and the vane surface (Vd) of the vane body (Va), and a covering body drive unit which moves the movable covering body between a state in which the movable covering body covers the metal sheath and the boundary portion (Ta) and a state in which the movable covering body is separated from the metal sheath while uncovering the metal sheath and the boundary portion (Ta), and the control unit performs control to make transition from a sheath cladding coating mode in which paint is sprayed onto the entire vane surface (Vd) of the vane body (Va) by operating the nozzle and the robot with the metal sheath and the boundary portion (Ta) being covered with the movable covering body to a finish coating mode in which paint is sprayed over the movable covering body onto at least the boundary portion (Ta) out of the lateral edge portion (Sr) of the metal sheath and the boundary portion (Ta) by operating the nozzle and the robot with the movable covering body separated from the metal sheath by the covering body drive unit, wherein the covering body drive unit includes a locking mechanism (21, 25) which maintains a covered state in which the metal sheath and the boundary portion (Ta) are covered with the movable covering body, an unlocking mechanism (27, 28) which releases the covered state of the movable covering body created by the locking mechanism (21, 25) and separates the movable covering body from the metal sheath, and a helical extension spring which maintains a separated state between the movable covering body and the metal sheath by imparting a force in a direction of the separating from the metal sheath to the movable covering body. a jig which supports the vane; a nozzle which sprays paint onto a vane surface (Vd) of the vane body (Va) except for the metal sheath of the vane supported by the jig; a robot which moves the nozzle; and a control unit which controls a paint spraying operation of the nozzle and the robot, wherein the jig includes a movable covering body which covers the metal sheath by separably overlapping the metal sheath and covers a boundary portion (Ta) between a lateral edge portion (Sr) of the metal sheath and the vane surface (Vd) of the vane body (Va), and a covering body drive unit which moves the movable covering body between a state in which the movable covering body covers the metal sheath and the boundary portion (Ta) and a state in which the movable covering body is separated from the metal sheath while uncovering the metal sheath and the boundary portion (Ta), and the control unit performs control to make transition from a sheath cladding coating mode in which paint is sprayed onto the entire vane surface (Vd) of the vane body (Va) by operating the nozzle and the robot with the metal sheath and the boundary portion (Ta) being covered with the movable covering body to a finish coating mode in which paint is sprayed over the movable covering body onto at least the boundary portion (Ta) out of the lateral edge portion (Sr) of the metal sheath and the boundary portion (Ta) by operating the nozzle and the robot with the movable covering body separated from the metal sheath by the covering body drive unit, wherein the covering body drive unit includes a locking mechanism (21, 25) which maintains a covered state in which the metal sheath and the boundary portion (Ta) are covered with the movable covering body, an unlocking mechanism (27, 28) which releases the covered state of the movable covering body created by the locking mechanism (21, 25) and separates the movable covering body from the metal sheath, and a helical extension spring which maintains a separated state between the movable covering body and the metal sheath by imparting a force in a direction of the separating from the metal sheath to the movable covering body.