The invention relates to data packet identification technology and discloses a method for controlling on/off of a plurality of different network protocol analysis. The method specifically includes the following steps of: 1, initializing an analysis filter, registering an analysis callback method, and configuring an analysis filter and a protocol required to be identified according to environment; 2, acquiring a data packet, determining whether the data packet is required to be analyzed by using a result filter, and successively calling the analysis callback methods registered by the analysis filters for protocol analysis if so, or continuing to acquire a next data packet; and 3, configuring the result filter according to the analysis result in the step 2. The method switches on/off the protocol analysis by using the analysis filter, reduces the number of traversal times according to actual configuration by means of the binding of the on/off and an execution function, is flexible to achieve, and does not generate extra resource consumption by the system.