Abstract: To manage original microwave transmission devices remotely, a solution to design and implement the network management system for microwave transmission network is proposed.It adds network management module into old device, extends the network interface, and implements Agent program.The specific network management software is written to manage the entire network with SNMP.The solution realizes network management data′s fast routing and all devices′ centralized monitoring, but only a time slot (64 kb/s) of old microwave link is used.