Because the bare optical fiber Bragg grating(OFBG) sensors' limiting strain is low,and the installation in the arch bridge suspender is inconvient,combining the strength properties of glass fiber reinforced polymer(GFRP) with the sensing properties of OFBG,a new kind of smart GFRP-OFBG composite bars have been developed in this paper.It is verified that the GFRP-OFBG sensors' limiting strain is 1.6 times,and close to 75% of that of the steel strand.through tensile experiment,and theirs sensitivity coefficient is gotten by calibrating experiment.The installation of GFRP-OFBG sensors have been explored in the arch bridge suspenders.The self-monitoring intelligent suspenders have been made.The testing results show GFRP-OFBG sensors can represent the overall stress of suspender,and the measurement result is well coincided with the practical value.