Tight-binding electron-ion dynamics of carbon chains pumped by intense laser pulses are performed to study the interactions between monatomic carbon chains and lasers.Laser-induced distortions of carbon chains,which are enhanced by a long wavelength laser,are investigated.The carbon chains with a strong laser beam focused on one terminal are simulated to study the disturbance of electronic states.By the superposition of delocalized π band states,the disturbance propagates from the illuminated area to the non-illuminated area in a velocity ofabout 106 m/s at 0 K,and this velocity is weakened at room temperature due to the localization effect of thermal fluctuation.