A method of manufacturing a member comprising the steps of: (a) preparing a base member made of a first material; (b) machining the base member; and (c) buildup-welding a shaped article on the base member, wherein the method is characterized by: machining the base member in step (b) to form a plurality of stepwise stairs each having an upper surface, a side surface and a corner; and wherein said buildup-welding a shaped article on the base member of step (c) is performed by using an additive manufacturing method, wherein the additive manufacturing method supplies a powder material that is a second material that is different from the first material into a spot diameter of laser light while emitting the laser light, wherein, when a length of the side surface is defined as L1 while a length of the upper surface is defined as L2, a "L1/L2" value of each stair is equal to or smaller than 4, wherein an angle (θa) of the corner of each of the plurality of stairs is equal to or larger than 90 degrees and equal to or smaller than 120 degrees, wherein said buildup-welding of step (c) includes the steps of: forming a first weld object on a first surface of the base member by supplying the powder material into the spot diameter of the laser light while emitting the laser light to at least one of the corners which is a part of the first surface; and forming a second weld object on a surface of the first weld object and on a second surface of the base member, the second surface being adjacent to the first surface, by supplying the powder material into the spot diameter of the laser light while emitting the laser light to the first weld object and at least one the corners which is a part of the second surface. (a) preparing a base member made of a first material; (b) machining the base member; and (c) buildup-welding a shaped article on the base member, wherein the method is characterized by: machining the base member in step (b) to form a plurality of stepwise stairs each having an upper surface, a side surface and a corner; and wherein said buildup-welding a shaped article on the base member of step (c) is performed by using an additive manufacturing method, wherein the additive manufacturing method supplies a powder material that is a second material that is different from the first material into a spot diameter of laser light while emitting the laser light, wherein, when a length of the side surface is defined as L1 while a length of the upper surface is defined as L2, a "L1/L2" value of each stair is equal to or smaller than 4, wherein an angle (θa) of the corner of each of the plurality of stairs is equal to or larger than 90 degrees and equal to or smaller than 120 degrees, wherein said buildup-welding of step (c) includes the steps of: forming a first weld object on a first surface of the base member by supplying the powder material into the spot diameter of the laser light while emitting the laser light to at least one of the corners which is a part of the first surface; and forming a second weld object on a surface of the first weld object and on a second surface of the base member, the second surface being adjacent to the first surface, by supplying the powder material into the spot diameter of the laser light while emitting the laser light to the first weld object and at least one the corners which is a part of the second surface. machining the base member in step (b) to form a plurality of stepwise stairs each having an upper surface, a side surface and a corner; and wherein said buildup-welding a shaped article on the base member of step (c) is performed by using an additive manufacturing method, wherein the additive manufacturing method supplies a powder material that is a second material that is different from the first material into a spot diameter of laser light while emitting the laser light, wherein, when a length of the side surface is defined as L1 while a length of the upper surface is defined as L2, a "L1/L2" value of each stair is equal to or smaller than 4, wherein an angle (θa) of the corner of each of the plurality of stairs is equal to or larger than 90 degrees and equal to or smaller than 120 degrees, wherein said buildup-welding of step (c) includes the steps of: forming a first weld object on a first surface of the base member by supplying the powder material into the spot diameter of the laser light while emitting the laser light to at least one of the corners which is a part of the first surface; and forming a second weld object on a surface of the first weld object and on a second surface of the base member, the second surface being adjacent to the first surface, by supplying the powder material into the spot diameter of the laser light while emitting the laser light to the first weld object and at least one the corners which is a part of the second surface. forming a first weld object on a first surface of the base member by supplying the powder material into the spot diameter of the laser light while emitting the laser light to at least one of the corners which is a part of the first surface; and forming a second weld object on a surface of the first weld object and on a second surface of the base member, the second surface being adjacent to the first surface, by supplying the powder material into the spot diameter of the laser light while emitting the laser light to the first weld object and at least one the corners which is a part of the second surface.