The invention provides an automatic traffic feature collection method and system based on probes. The probe is deployed at a terminal side for user and process behavior identification; the probe is deployed at a network side for traffic capturing; association is established between terminal behaviors and network traffic in order to carry out traffic feature automatic extraction and collection; andthrough big data analysis, a linkage relationship between terminal side operation and network side data is obtained, and validity of history network traffic characteristics are dynamically judged. According to the method and the system, joint automatic network traffic feature collection based on the terminal and the network probes can be realized, feature base data can be dynamically collected and maintained; and the feature integrity and accuracy are ensured sufficiently.