A method of manufacturing a cable with resin molded body, wherein the cable with resin molded body comprises a cable and a resin molded body formed by resin molding so as to cover a tip portion of the cable, wherein the resin molded body comprises a main body to cover the tip portion of the cable and a flange to fix the resin molded body to an attachment object, the flange being integrally molded with the main body, and wherein the flange comprises a bolt hole through which a bolt is inserted so as to fix the flange to the attachment object, the method comprising: molding the resin molded body by injecting a resin into a mold, the mold comprising a main body-molding portion for molding the main body, a flange-molding portion for molding the flange and a first resin inlet formed behind the flange-molding portion in relation to the main body-molding portion; and injecting the resin through the first resin inlet into the mold during the molding of the resin molded body, wherein the mold further comprises a second resin inlet formed at a position of a base end portion of on the main body-molding portion corresponding to a covering of the molded cable, and wherein the resin is further injected through the second resin inlet into the mold during the molding of the resin molded body. wherein the cable with resin molded body comprises a cable and a resin molded body formed by resin molding so as to cover a tip portion of the cable, wherein the resin molded body comprises a main body to cover the tip portion of the cable and a flange to fix the resin molded body to an attachment object, the flange being integrally molded with the main body, and wherein the flange comprises a bolt hole through which a bolt is inserted so as to fix the flange to the attachment object, the method comprising: molding the resin molded body by injecting a resin into a mold, the mold comprising a main body-molding portion for molding the main body, a flange-molding portion for molding the flange and a first resin inlet formed behind the flange-molding portion in relation to the main body-molding portion; and injecting the resin through the first resin inlet into the mold during the molding of the resin molded body, wherein the mold further comprises a second resin inlet formed at a position of a base end portion of on the main body-molding portion corresponding to a covering of the molded cable, and wherein the resin is further injected through the second resin inlet into the mold during the molding of the resin molded body. molding the resin molded body by injecting a resin into a mold, the mold comprising a main body-molding portion for molding the main body, a flange-molding portion for molding the flange and a first resin inlet formed behind the flange-molding portion in relation to the main body-molding portion; and injecting the resin through the first resin inlet into the mold during the molding of the resin molded body, wherein the mold further comprises a second resin inlet formed at a position of a base end portion of on the main body-molding portion corresponding to a covering of the molded cable, and wherein the resin is further injected through the second resin inlet into the mold during the molding of the resin molded body.