The invention discloses an integrated network security situation awareness method and device and a computer device. The method comprises the following steps: acquiring a monitored asset object and various security information generated by security equipment serving as a monitoring management and control engine by docking various security equipment, subsystems and security data sources in a network; analyzing attack threats and own risk degrees of the monitored asset object and the business object according to the security information data, and comparing external threat information with internal security information to obtain a network security situation; presenting the security situation through six main dimensions of attack perception, risk perception, vulnerability perception, threat perception, asset perception and operation perception; and according to the network security situation, performing security operation and maintenance-oriented early warning notification and disposal according to a preset emergency disposal scheme. Network omnibearing situation awareness and response are realized, convenience is brought to safety operation and maintenance of companies, and technical and data support is provided for continuous improvement of information safety.