The invention provides a method for performing confidentiality and sensitivity related monitoring on internet information. The method for performing confidentiality and sensitivity related monitoringon the internet information comprises the following steps: S1, constructing a confidentiality and sensitivity related information recognition model; S2, building a confidentiality and sensitivity related lexicon and rule analyzing the government website, adding the related confidentiality and sensitivity related information to the confidentiality and sensitivity related lexicon to constructthe confidentiality and sensitivity related lexicon, and defining the rule base according to the characteristics of the lexicon; S3, collecting internet information, performing confidentiality and sensitivity related information detection, and judging the leakage level of the confidentiality and sensitivity related information; and S4, notifying the user of the internet information whose leakage level of the confidentiality and sensitivity related information is a serious or significant level by means of a short message, and/or WeChat, and/or a mail. In addition, the invention also provides asystem for performing confidentiality and sensitivity related monitoring on the internet information. The technical scheme disclosed by the invention solves the problems that the current confidentiality and sensitivity related monitoring of the massive amount of the internet information cannot perform filtering in real time and the misinformation rate is high. The invention can identify the confidentiality and sensitivity related information in the internet efficiently, quickly and accurately.