Concrete tube filled reactive powder is a new type of constained composite column based on ultra-high performance cement casing, with the mechanical properties of reactive powder concrete and the constraint effect of stirrup. In this paper, four Concrete-Filled RPC Tube (CFRT) columns and one ordinary hoops-confined concrete column were tested under cyclic and constant axial load. The failure mode, hysteresis behavior and strain development of reinforcements were investigated, and the relevant seismic parameters were analyzed. CFRT columns exhibited typical bending failure characteristics. In contrast to conventional reinforced concrete column, the surface of Reactive Powder Concrete(RPC) tube was characterized with well distributed fine cracks, without any RPC cover spalling or crushing. The hysteresis curve of CFRT cloumn is full, and its seismic performance is significantly better than that of ordinary stirrup confined concrete cloumn. Under the test conditions, the limit plastic drift ratios of CFRT columns vary between 0.042 and 0.075, which largely exceed the specified limit (0.02) according to the rare earthquake requirement in Chinese seismic design code. The results also reveal that RPC tube filled with high strength concrete is an acceptable combination for CFRT columns.