An optical communication module, comprising: a photoelectric conversion element package to which a photoelectric conversion element of either one of a light emitting element and a light receiving element is fitted so as to face one side of a resin housing; and an optical fiber coupler mounted on the one side of the resin housing so as to be coupled with an optical fiber, wherein the optical fiber coupler comprises: a metal lens-holding plate that holds a lens arranged to face the photoelectric conversion element; and a resin lens-holding frame that is mounted on the one side of the resin housing and that houses the lens held on the metal lens-holding plate in a light transmission hole formed therein, so that the lens is aligned with an optical axis of the photoelectric conversion element; wherein the metal lens-holding plate has a lens holding section for holding the lens; and an outer circumferential portion of the lens holding section which holds the lens is buried in the resin lens-holding frame; characterized in that the lens holding section is for molding the lens; and the resin lens-holding frame comprises: a cylindrical portion having the light transmission hole formed therein for coupling with the optical fiber; and a rectangular solid portion that is mounted on one side of the resin housing, the rectangular solid portion is buried with the metal lens-holding plate which holds the lens; wherein the resin lens-holding frame is formed by connecting the cylindrical portion with the rectangular solid portion. a photoelectric conversion element package to which a photoelectric conversion element of either one of a light emitting element and a light receiving element is fitted so as to face one side of a resin housing; and an optical fiber coupler mounted on the one side of the resin housing so as to be coupled with an optical fiber, wherein the optical fiber coupler comprises: a metal lens-holding plate that holds a lens arranged to face the photoelectric conversion element; and a resin lens-holding frame that is mounted on the one side of the resin housing and that houses the lens held on the metal lens-holding plate in a light transmission hole formed therein, so that the lens is aligned with an optical axis of the photoelectric conversion element; wherein the metal lens-holding plate has a lens holding section for holding the lens; and an outer circumferential portion of the lens holding section which holds the lens is buried in the resin lens-holding frame; characterized in that the lens holding section is for molding the lens; and the resin lens-holding frame comprises: a metal lens-holding plate that holds a lens arranged to face the photoelectric conversion element; and a resin lens-holding frame that is mounted on the one side of the resin housing and that houses the lens held on the metal lens-holding plate in a light transmission hole formed therein, so that the lens is aligned with an optical axis of the photoelectric conversion element; wherein the metal lens-holding plate has a lens holding section for holding the lens; and an outer circumferential portion of the lens holding section which holds the lens is buried in the resin lens-holding frame; characterized in that the lens holding section is for molding the lens; and the resin lens-holding frame comprises: a cylindrical portion having the light transmission hole formed therein for coupling with the optical fiber; and a rectangular solid portion that is mounted on one side of the resin housing, the rectangular solid portion is buried with the metal lens-holding plate which holds the lens; wherein the resin lens-holding frame is formed by connecting the cylindrical portion with the rectangular solid portion.