This Recommendation specifies mechanism of deep packet inspection applied in big data in network context. This Recommendation specifies introduction of differences between generic DPI and big data DPI , overview of big data processing procedure, relationship between deep packet inspection and big data related technologies, data classification mechanism using deep packet inspection for big data in network, data pre-processing mechanism using deep packet inspection for big data in network, coordination processing mechanism of deep packet inspection in context of big data in network and interfaces between deep packet inspection and the upper-layer big data related methods.