A production method of a shroud segment suitable for arrangement in a gas turbine engine between a casing enclosing a rotor blade and the rotor blade by locking hook portions of the shroud segment in the casing, the shroud segment including a facing portion that has a plate shape which is curved in an extending direction thereof, the facing portion having end portions; hook portions which stand from the facing portion and extend in the extending direction, each hook portion having a tip portion bent parallel to the facing portion and facing the respective end portion, the tip portions being spaced apart and bent in opposite directions; wherein the shroud segment is made of a fiber-reinforced composite material including a plurality of continuous thread-shaped woven fibers and a matrix which is molded by adhesion to the continuous fibers, the continuous fibers extending without being cut around outer surfaces of the facing portion and the hook portions, and the outer surfaces forming a closed cross-sectional shape perpendicular to the extending direction of the facing portion and the hook portions, the production method of the shroud segment comprising: a forming process of molding a substantially cylindrical fiber fabric which includes the plurality of the continuous fibers into a shroud segment shape which includes the facing portion and the hook portions by pressing the substantially cylindrical surface of the fiber fabric via molds while a gap is provided at parts corresponding to the end portions to allow excess deformation of the fiber fabric; and a matrix forming process of impregnating the fiber fabric molded into the shroud segment shape with the matrix. hook portions which stand from the facing portion and extend in the extending direction, each hook portion having a tip portion bent parallel to the facing portion and facing the respective end portion, the tip portions being spaced apart and bent in opposite directions; wherein the shroud segment is made of a fiber-reinforced composite material including a plurality of continuous thread-shaped woven fibers and a matrix which is molded by adhesion to the continuous fibers, the continuous fibers extending without being cut around outer surfaces of the facing portion and the hook portions, and the outer surfaces forming a closed cross-sectional shape perpendicular to the extending direction of the facing portion and the hook portions, the production method of the shroud segment comprising: a forming process of molding a substantially cylindrical fiber fabric which includes the plurality of the continuous fibers into a shroud segment shape which includes the facing portion and the hook portions by pressing the substantially cylindrical surface of the fiber fabric via molds while a gap is provided at parts corresponding to the end portions to allow excess deformation of the fiber fabric; and a matrix forming process of impregnating the fiber fabric molded into the shroud segment shape with the matrix. a forming process of molding a substantially cylindrical fiber fabric which includes the plurality of the continuous fibers into a shroud segment shape which includes the facing portion and the hook portions by pressing the substantially cylindrical surface of the fiber fabric via molds while a gap is provided at parts corresponding to the end portions to allow excess deformation of the fiber fabric; and a matrix forming process of impregnating the fiber fabric molded into the shroud segment shape with the matrix.