The invention provides a system and a method for displaying information. The system comprises an intranet search engine server, an isolation region optimization memory and at least one client, wherein the intranet search engine server grabs preset intranet data and processes the preset intranet data according to a preset rule in order to obtain valid collection data; the isolation region optimization memory obtains the valid collection data from the intranet search engine server through a preset secure channel, encapsulates the valid collection data to a data packet which can be identified by at least one client and stores the data packet; and the isolation region optimization memory displays information in the data packet to at least one client. According to the system and the method for displaying the information, which are provided by the embodiments of the invention, the security of the intranet information can be further guaranteed under the condition that the intranet and the extranet are interconnected.