The invention relates to an RFID (Radio Frequency Identification Devices) information processing method based on a channel flow, which comprises a step S2 of processing a tag message to produce a tag event for supplying an upper level application program. The process for processing the tag message to produce the tag event for supplying the upper level application program comprises the following steps of: defining processors for realizing different processing functions before processing the tag message; writing a calling sequence of all processors in a configuration table of an event engine; during processing, acquiring the tag message, and putting the acquired message into a defined channel; and calling each processor according to the sequence set in the configuration table of the event engine, and processing the information in the channel in a channel flow mode. The invention enhances the flexibility of the event processing procedure, dynamically enhances and expands the functions ofthe processors, avoids the rigescence and the low efficiency of process configuration and improves the response and processing capabilities of the system to bottom-level events.