A molded object having a non-woven fiber structure, the molded object comprising: a polyester-based fiber; and a binder, wherein the binder is a non-hygroscopic copolymer resin, the non-hygroscopic copolymer resin has a weight change rate of less than 0.1% after keeping a constant temperature/constant humidity for 100 hours at a temperature of 85°C and relative humidity of 85%, all or a part of the polyester-based fiber is fused by the binder, natural pores formed by fibers being entangled with each other are included inside the molded object, and the molded object has apparent density of 0.5 g/cm 3 to 0.8 g/cm 3, flexural strength of 20 MPa or greater and tensile strength of 50 MPa to 80 MPa, wherein the molded object is manufactured by a dry method including a) preparing a non-woven fabric by mixing the polyester-based fiber and a sheath-core type bicomponent fiber including a core part of the polyester-based fiber and a sheath part that is the nonhygroscopic copolymer resin surrounding the core part, and then heating and pressurizing the result; b) installing the prepared non-woven fabric on a plurality of unwinding devices, and then moving to a heating press; and c) manufacturing a molded object by heating and pressurizing a plurality of the non-woven fabrics moved to the heating press under a temperature condition of 170°C to 210°C and a pressure condition of 1 MPa to 10 MPa.. a polyester-based fiber; and a binder, wherein the binder is a non-hygroscopic copolymer resin, the non-hygroscopic copolymer resin has a weight change rate of less than 0.1% after keeping a constant temperature/constant humidity for 100 hours at a temperature of 85°C and relative humidity of 85%, all or a part of the polyester-based fiber is fused by the binder, natural pores formed by fibers being entangled with each other are included inside the molded object, and the molded object has apparent density of 0.5 g/cm 3 to 0.8 g/cm 3, flexural strength of 20 MPa or greater and tensile strength of 50 MPa to 80 MPa, wherein the molded object is manufactured by a dry method including a) preparing a non-woven fabric by mixing the polyester-based fiber and a sheath-core type bicomponent fiber including a core part of the polyester-based fiber and a sheath part that is the nonhygroscopic copolymer resin surrounding the core part, and then heating and pressurizing the result; b) installing the prepared non-woven fabric on a plurality of unwinding devices, and then moving to a heating press; and c) manufacturing a molded object by heating and pressurizing a plurality of the non-woven fabrics moved to the heating press under a temperature condition of 170°C to 210°C and a pressure condition of 1 MPa to 10 MPa.. a) preparing a non-woven fabric by mixing the polyester-based fiber and a sheath-core type bicomponent fiber including a core part of the polyester-based fiber and a sheath part that is the nonhygroscopic copolymer resin surrounding the core part, and then heating and pressurizing the result; b) installing the prepared non-woven fabric on a plurality of unwinding devices, and then moving to a heating press; and c) manufacturing a molded object by heating and pressurizing a plurality of the non-woven fabrics moved to the heating press under a temperature condition of 170°C to 210°C and a pressure condition of 1 MPa to 10 MPa..