Disclosed is a network device configuration method. The method comprises the steps that network devices in an actual network are simulated through a network simulator, each network device in the simulated network is automatically configured according to the type of the network device, a simulation run packet transmission test is carried out on the simulated network through the network simulator after the simulated network is configured, if the packet transmission test result is correct, the minimum network units of various functions in the simulated network are configured to generate configuration files, the configuration files are exported to be stored, and the minimum network units in the actual network are configured by means of the configuration files. According to the network device configuration method, the intelligence degree of configuration is improved, the networking configuration efficiency is improved, and the configuration error rate is lowered.