The invention discloses a substation message processing method and device applicable to off-line analysis. When a network message is generated, network message configuration information is read for one time, the network message configuration information in the form of a file with a PCFG format along with the message are stored in a storage device in a one-to-one correspondence mode. Therefore, when off-line analysis is performed on a communication network, a third-party file or data are not depended, and batch operation is supported, thereby not only improving the execution efficiency, but also reducing the probability of an error.