This paper is to evaluate experimentally the long-term behavior of concrete beam with FRP Bars. All beams reinforced with steel, GFRP, AFRP and CFRP were under sustained loading for approximately 300 days. As the results of test, it found that calculated results obtained from ACI 440.1R-06 were overestimated comparing to test results, and it exhibits the variability of the long-term deflection factor along the types of FRP bar