We analyzed theoretically and calculated numerically the compensation between two optical pulses with different wavelength based on spectral phase conjugation （SPC）and temporal phase conjugation （TPC）.The results showed that TPC can′t compensate waveform distortion caused by XPM,while SPC can compensate waveform distortion caused by XPM.For Gaussian pulse,the output pulse from SPC system is the same as the input signal pulse.For chirped Gaussian pulse,the signal pulse broadened is different in the midway,but the output pulse from SPC system is almost the same as the input signal pulse.For super-Gaussian pulse,the broadened factor increases with the increasing of Gaussian parameter in the first half of the optical fiber,but the output pulse from SPC system is the same as the input signal pulse.For pulse train,the output signal pulse from SPC system is both the complex conjugation and temporal reversion of the input pulse.