Aiming at the problem of the reinforcement effect of the carbon fiber on the beam of long-piled wharf，we present the static test of the approach bridge of long piles wharf before and after the reinforcement of carbon fiber with the concept of bridge static test.The improvement of bearing capacity of the wharf with the reinforcement of the carbon fiber is obtained by comparisons of the settlements and stresses before and after the reinforcement.In the meanwhile，it is also examined whether the beam structure satisfies the design requirements or not.The analyses of the test results reveal that the strengthening effect of carbon fiber on the beams of long piled wharf is significant and the method can be spread.