In this paper, the experiments of the concrete-filled steel tubular （CFST） column-beam joints with discontinuous column tube in the joint zone were carried out with 7 axial and 2 eccentric compressive specimens. The mechanical performances of two types of joints, including the failure mode, the crack load, the ultimate bearing capacity, the structural deformation and the strains of ring bars, steel tubes and longitudinal bars, were then investigated. In the joint of Type 1, the columns were separated on each floor, while in Type 2, the openings were cut on the column tube at the corresponding beam place. The results show that （ 1 ） under the constraint of concrete ringbeams and ring bars, the joints are of good ductility and high bearing capacity ; （2） the two types of joints have the same failure mode and similar mechanical performances; （3） both the ultimate bearing capacity and the strain of eccentric compressive specimens decrease with the increase of the eccentricity ; （4） the strains of the ring bars of eccentric compressive specimens tend to decrease from the tension side to the compression side, thus resulting inasymmetric constraints ; and （5） the strains of longitudinal column bars tend to decrease from the joint zone to the ends of the column.