The influences of porosity, impact energies and moisture contents on the residual tensile strength and bending strength after impact of CFRP laminates are evaluated. CFRP laminates of three porosity levels were immersed in water for 7、 14 days and moisture saturation. Impact tests on the CFRP laminates of three porosity levels with different immersion time were conducted at five impact energy levels of 3-15J at room temperature, followed by the residual tensile test and bending test performed on the specimens. The experimental results show that the residual tensile strength and bending strength after impact decreased significantly with the increasing impact energy. For the same impact energy, no obvious effects of void contents on the residual tensile strength and bending strength after impact were observed. The delamination induced by the impact would reduce the influence of void on the residual strength of the impacted specimens.