The utility model discloses a bridge concrete guardrail with low cost and high protection grade. The F-shaped slope concrete wall comprises an F-shaped slope concrete wall body and internal reinforcing bars, wherein the F-shaped slope surface concrete wall body wraps the internal reinforcing bars, the internal reinforcing bars comprise wall body reinforcing bars and connecting reinforcing bars, the wall body reinforcing bars are connected with the connecting reinforcing bars in a binding mode, the F-shaped slope surface concrete wall body and the bridge beam plate are connected into a whole through the connecting reinforcing bars, and the connecting reinforcing bars are fixedly connected with the bridge beam plate. The guardrail has the advantages that compared with a traditional design, the material amount is reduced on the basis that the guardrail keeps the high-protection-level safety protection capacity; the diameter of guardrail reinforcing bars is decreased, the distance betweenvertical bars is increased, steel bar bending is omitted for part of structures, the construction period can be shortened, and the engineering cost is reduced. The slope surface form of the guardrailis verified by a full-scale collision test of a real vehicle, and is safe and reliable.