In order to study the anchorage property of rebar-metallic bellows slurry anchor connection, 18 groups of connection specimens were designed and fabricated in this study, and the pull-out tests were completed. The influences of anchorage length l_a, grouting material curing age T and spiral confinement on the anchorage property of the connection were analyzed based on the test results. The experimental results show that all the anchored rebars had undergone integral elastic stage and yielding stage, and the ultimate performance of specimens were bond slip failure and rebar fracture. When T=3 d, bond-slip failure occurred in all specimens. When T=7 d and l_a≥13d, rebars fractured. When T=28 d, specimens whose l_a=7d without stirrup and l_a=5d with stirrup began to failure of rebar fracture. With application of spiral confinement and the increase of anchorage length and grout age, the ultimate strength of specimens increased first and then approached to the tensile strength of rebar, the maximum sliding displacement of rebars in the elastic stage decreased significantly, the initial stiffness of specimens increased, and anchorage property improved significantly. In engineering practice, when D/d≥2.6, the anchorage length should be greater than 13d to ensure the anchorage performance of 3 d and 7 d. In order to fully exert its mechanical properties in normal work stage, anchorage length is prohibited to be less than 10d.