In a second order dispersion and third order dispersion compensation optical fiber links system, 1 ps Gaussian pulse′s transmission is simulated. It is concluded that as second order dispersion compensation can avoid pulse broadening, third order dispersion compensation not only can avoid pulse broadening, but also eliminate pulse edge′s oscillating and temporal shift of pulse peak. The eye diagrams of 64 bit random data pattern of 100 Gb/s Gaussian pulse series after transmissing 2000 km are obtained. It is shown through the clear eye diagram that third dispersion compensation system can efficiently improve the transmission performance of short pulse.