This paper studied that the nonlinear vibration of rectangular cable net using carbon fiber cables under foundation displacement excitation, and the nonlinear vibration equation was presented on the basis of considering temperature changing .The approximate solution of nonlinear vibration of rectangular cable mesh was given using Galerkin principle and KBM method. Then some factors, which affect the nonlinear vibration, such as the amount of temperature changing, foundation displacement excitation, amplitude as well as damping, were discussed with the comparison between steel cable and carbon fiber cable. At last the conclusions can be obtained that the vibration characteristics of cable net using carbon fiber cables is superior to cable net using steel.