Abstract: In this paper, a method for the equipment training software based on ARP cheating is present. The presented method includes ARP cheating, sniffer of equipment instruction and information, data cheat and retrasmition and ARP recovery. For the execution process of method is completely transparent for the operator and is more realistic than traditional training softwares, the method is much more effective. The experiment results show that the interested data of equipments can be snifferd through ARP cheat. Finally, an equipment training software is implemented based on the ARP cheat.