System for synthetical analyzing and monitoring safety of information on network

The invention is in use for information safety domain of computer network. The invention includes control module for role access, protocol analysis and information capture module, blacklist /whitelist database, module for recognizing data types, text and image passive analysis modules, information data stream process node, process center, module for detecting hidden information of image, active analysis module for text image etc. Through protocol analysis and information capture module, the invention captures data transmitted under each protocol, and module for recognizing data types carries out recognition for captured information. The captured and recognized data are sent to subsequent module to carry out specific analysis. The process center sends out the process instructs to information data stream process node to execute intervening operation. The invention carries out analyzing and monitoring text and image information on network, and breaks and analyzes unhealthy information.