Experimental instrument and testing method are developed for studying shearing behavior of the structural member under shear force. Taking the concrete strength and the longitudinal CFRP layers as the main parameters, static shear tests of overall 9 circular concrete filled CFRP-steel tube (C-CF-CFRP-ST) and 3 circular concrete filled steel tube (C-CFST) are carried out. The experimental results show that the shear force-displacement curves of the specimens can be divided into elastic stage, strengthening stage and softening stage. The increases of the strength of the concrete and the layers of the transverse CFRP can both enhance the shearing load carrying capacity of the specimen. Steel tube and CFRP can cooperate, and the longitudinal and transverse strains are all tensile while strain in 45° direction is compressive. The shear force-displacement curves of the specimens are simulated by using finite element software ABAQUS and it is found that the predicted results agree reasonably well with the test results.