The interaction between one-order self-Fourier soliton and one-order standard soliton signal in optical fibers was studied numerically. The method used are split-step Fourier transform method. There is not any theoretical error in the inner part of algorithm in the method. The results show that if the two solitons have the same one-order and different amplitudes, third order dispersive effect induce the different time delay. The short range interaction of soliton further changes group velocity of soliton. Solitons are accelerated according to their orientation.