In this paper, an ultra-high performance cement-based material RPC-Reactive Powder Concrete (RPC-reactive Powder Concrete) was developed to anchor multiple bundles of CFRP-Carbon Fiber Reinforced plastics (CFRP-Carbon Fiber Reinforced) Polymer) bond anchorage system of prestressed tendons. A set of CFRP strain-anchor assembly GA12-9 with 9 CFRP bars of 12.6mm diameter as prestressed tendons was fabricated, and its mechanical properties were studied by tensile test. In the experiment, the non-uniform stress characteristics of the multiple beams were observed, and finally the adhesive failure of the multiple beams occurred. It is proved that the unique non-uniformity of the group anchor specimens will reduce its bearing capacity, and the bearing capacity reduction coefficient is determined. At the same time, the prediction formulas for bond strength and critical anchoring length of single and multiple CFRP bars are determined, which are in good agreement with the test results. It has been proved that nine ribbed CFRP bars with tensile strength of about 2300MPa are used as prestressed bars, RPC with strength of 130MPa is used as bonding medium, the net distance between reinforcement is set to double the diameter of reinforcement, and the anchorage length needs 25 times the diameter of reinforcement to provide effective anchorage.