The successive dislocation feedback(SDF)method is proposed to control chaos system.Controlling principle is introduced,and single-mode laser Lorenz system is taken as a typical example to demonstrate the effectiveness of this method.The characteristic quantity of the nucontrolled and controlled system(phase figure、power spectrums、reconstruction of phase space etc.) is compared with each ather.The numerical simulation results show that the phase figure and reconstruction of phase space in the system can be changed into the periodic states from the chaotic attractor which has self similar structure of infinite embedment and is restricted within terminate phase space,and the periodic numbers of different periodic orbits are 2~n×3~mp(n,m are integers);meanwhile the power spectrums of the system can also be changed from the continuous spectrum into the discrete spectrums with some separation single peaks.