The invention relates to a method for viewing a pre-message through crossing security zones. The method is used for an automatic power dispatching
system. The method comprises the following steps: visiting a
WEB server of a security zone III through a
web browser, establishing cache on the
data platform of the security zone III, storing pre-data, channel information and a channel message, after the
client of the browser logs on to the
WEB server of the security zone III, obtaining the real-
time information of channels, selecting a channel to be reviewed, transmitting the keywords of the channel to the security zone III, and transmitting the keywords of the channel to a security zone I through forward and reverse
data transmission by the security zone III; and acquiring real-
time data, transmitting a required original channel message to the security zone III through forward and reverse
data transmission by the security zone I, and transmitting the message to the
client of the browser by the security zone III to realize that the
client of the browser views the channel quasi-real-time message. Through visiting the
server of the security zone III to view the information and the message of the pre-channel of the security zone I, the invention has the advantages that the operation is simple and clear, the message revealing form fits in with the practical need and the quasi-real-timeviewing speed is high.