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In order to solve the different optical network transmission equipment cannot achieve network communication problems,the method of software and hardware design of Synchronous Digital Hierarchy management information extraction and insertion system is proposed. Mainly including the extraction and insertion of network management information, packing and unpacking of HDLC data and using the master controller and the USB module for network management information transmission to achieve high speed upload and real-time display and save in the host computer. Finally the system is tested to verify, the results show that the system can analyze different Optical Network equipment network management information and provides the basis for network management information exchange.