A three-dimensional fiber-reinforced composite comprising: a laminate including fiber bundle layers that are layered in a lamination direction, wherein the fiber bundle layers include a first outermost layer and a second outermost layer; a matrix resin with which the laminate is impregnated; a primary retention yarn located along a surface of the first outermost layer; a secondary retention yarn located along a surface of the second outermost layer; and a binding yarn that binds the fiber bundle layers in the lamination direction, wherein the binding yarn includes: a fold-back section (21 a) that is folded back such that the fold-back section (21 a) runs on an outer side of the primary retention yarn in the lamination direction; a primary traverse yarn section (21 b) and a secondary traverse yarn section (21 c) that are continuous with the fold-back section (21 a) and extended in the lamination direction between the primary retention yarn and the secondary retention yarn in the laminate; surface yarn sections (21 d) extending in directions that are substantially perpendicular to the secondary retention yarn and along the surface of the second outermost layer; and a bifurcated section (21 e) that is formed on the surface of the second outermost layer and continuous with the primary traverse yarn section (21 b) and the secondary traverse yarn section, and the bifurcated section (21 e) is formed by the surface yarn sections (21 d) that extend in opposite directions from the secondary retention yarn on the outer side of the secondary retention yarn in the lamination direction and cross each other. a laminate including fiber bundle layers that are layered in a lamination direction, wherein the fiber bundle layers include a first outermost layer and a second outermost layer; a matrix resin with which the laminate is impregnated; a primary retention yarn located along a surface of the first outermost layer; a secondary retention yarn located along a surface of the second outermost layer; and a binding yarn that binds the fiber bundle layers in the lamination direction, wherein the binding yarn includes: a fold-back section (21 a) that is folded back such that the fold-back section (21 a) runs on an outer side of the primary retention yarn in the lamination direction; a primary traverse yarn section (21 b) and a secondary traverse yarn section (21 c) that are continuous with the fold-back section (21 a) and extended in the lamination direction between the primary retention yarn and the secondary retention yarn in the laminate; surface yarn sections (21 d) extending in directions that are substantially perpendicular to the secondary retention yarn and along the surface of the second outermost layer; and a bifurcated section (21 e) that is formed on the surface of the second outermost layer and continuous with the primary traverse yarn section (21 b) and the secondary traverse yarn section, and the bifurcated section (21 e) is formed by the surface yarn sections (21 d) that extend in opposite directions from the secondary retention yarn on the outer side of the secondary retention yarn in the lamination direction and cross each other. a fold-back section (21 a) that is folded back such that the fold-back section (21 a) runs on an outer side of the primary retention yarn in the lamination direction; a primary traverse yarn section (21 b) and a secondary traverse yarn section (21 c) that are continuous with the fold-back section (21 a) and extended in the lamination direction between the primary retention yarn and the secondary retention yarn in the laminate; surface yarn sections (21 d) extending in directions that are substantially perpendicular to the secondary retention yarn and along the surface of the second outermost layer; and a bifurcated section (21 e) that is formed on the surface of the second outermost layer and continuous with the primary traverse yarn section (21 b) and the secondary traverse yarn section, and the bifurcated section (21 e) is formed by the surface yarn sections (21 d) that extend in opposite directions from the secondary retention yarn on the outer side of the secondary retention yarn in the lamination direction and cross each other.