Abstract: The multi-disk anchor is a newly developed anchor,which has the advantages of high uplift capacity,strong robustness and flexibility. Based on the indoor model test of the multi-disk anchor to further grasp the pull-out bearing performance,an on-site slope anchoring prototype test was carried out. The test results show that as the disk diameter increases from 300 mm to 500 mm,the pull-out bearing capacity of the single-support disk anchor is increased by 35.7%,50%,and 71.4%,respectively,compared with the ordinary anchor,and the deformation control is also enhanced accordingly. In the silty clay,the double-supported anchor bolt with the spacing between the support disks is greater than or equal to 4 times the diameter of the support disk,which can give more synergistic effect of the two support disks and accordingly,achieve greater uplift bearing capacity. With the support disks increased from 1 to 3,and the locked strata are is also increased,with greater pull-out bearing capacity and deformation control ability. The load-displacement relationship of the multi-disk anchor may be represented as in a hyperbolic model and used as to predict the bearing capacity. These results provide a good theoretical foundation for the engineering application of multi-branched anchors.