Abstract:GFRP (glass fiber reinforced polymer) anti-floating anchors has become a good substitute for steel anti-floating anchors because of its flexible layout, dispersed stress, strong corrosion resistance and green environmental protection. In order to further study the bearing capacity of GFRP anti-floating anchor, field pull-out destructive test was carried out based on six GFRP bolts and reinforced anchors in a foundation pit anti-floating project in Qingdao. The test results show that the average failure load of reinforced bolt and GFRP bolt is 324 kN and 394 kN respectively, and the utilization ratio of anchorage strength is 92 %. Under the conditions of the same diameter and the same anchorage length, GFRP anti-floating anchor can withstand greater drawing force and play a greater bond strength. In the load-slip curve analysis, the overall GFRP anti-floating anchor is slow “ S ” type, and the overall steel anchor is “ L ” type, indicating that the anti-floating performance of GFRP anchor is better than that of steel anchor. According to quadratic polynomial regression analysis, when the displacement of anchor bolt is less than 20 mm, the prediction accuracy is high, up to 96.15 %. The research results have certain reference value for practical anti-floating engineering application.