The algorithm and realization technique of network topology discovery is a very important technical indicator for a network management system’s quality. Based on the knowledge of the network topology discovery theory, the research on ICMP and SNMP programming for Windows, this paper proposes a method of developing the common network topology discovery software which is a conglomerate of ICMP and SNMP protocols so as to monitor a given network and successfully manage it while taking into full advantage of above mentioned protocols.