Abstract:High performance fibers such as carbon fiber,aramid fiber and glass fiber,etc.possess a series of excellent characters including corrosion-resistant,light weight,high strength,no magnetism and fatigue-resistant.The composite high performance fiber bar,which was made of high performance fibers immersed thermosetting resin and formed by extrusion arts,is used in concrete structural engineering to substitute or partially substitute for steel bar.This paper introduces design and manufacture methods of FRP bar and anchorage device;the mechanical property test method on tensile strength,elastic modulus and rate of elongation of FRP bar.Finally the statistical experimental results are analyzed,and the mechanical property index for structural design of FRP bar and design method for hybrid fiber FRP bar are also put forward.Test results show that stress-strain relation of FRP bar presents linear variation;the elastic modulus and rate of elongation of FRP bar are less than that of steel bar.It is obviously superior over steel bar in the field of strength-quality ratio.It is practicably feasible to use FRP bar as a kind of new concrete structural tensile-resistant reinforcing material.