GFRP rebar is a lightweight corrosion resistant rebar made using glass fiber reinforced polymer (GFRP). Compared with traditional steel bars, GFRP steel bars have many advantages, such as high strength, light weight, corrosion resistance, non-conductive, non-magnetic and easy processing, etc. In addition, GFRP steel bars also have good insulation properties and fatigue properties, which can maintain strength and stiffness during the life cycle. GFRP steel bars are widely used in a wide range of applications, especially in concrete structures, such as bridges, tunnels, docks, underground facilities, houses, etc. Compared with traditional steel bars, GFRP steel bars perform well in terms of tensile, compressive and bending resistance, and are more resistant to corrosion, and are better used in high humidity and marine environments.