eliably separate the interference signal in the signal toensure the communication quality of optical fibercommunication network, the application effect is good.The next work will be the recognition in lasercommunication network. The method in this paperseparates and processes the denoised signals, whicheffectively reduces the crosstalk between the signals inthe channel, thereby reducing the pseudo-code rate. Inorder to further improve the optimal design of theinterference signal of optical fiber communication, it isalso necessary to deeply study the reliability of thepositioning result of the interference signal, so as toimprove the quality of optical fiber communication.