In order to study the compression behavior of rectangular concrete joint with new type of mesh reinforcement, local compression experiments of 11 square specimens were carried out. The influence of the specimen's geometric parameters and the volumetric ratio of reinforcement on the bearing capacity was studied. With the confinement of stirrups around mesh reinforcement, the crack resistance of specimens was effectively improved. The height factor was the main influencing factor of the bearing capacity, the bearing capacity increased with the decrease of height, but specimens of higher relative height showed higher anti-cracking performance. The volumetric ratio of mesh reinforcement has some effect on the bearing capacity, but its influence was not obvious on the crack resistance. The constitutive relationship of confined concrete was adopted to build the equivalent stress-strain relationship for the core concrete of the specimens. The results of equivalent stress-strain curves calculated by the proposed constitutive relationship are in good agreement with the experiments.