With the rapid development of network technology, the US-led Western countries have been taking full advantages of network supremacy to infringe upon the network ideology of developing countries, especially upon socialist China, which has brought forth serious challenges to Chinas network ideology security. So it will be beneficial to resisting Western countries internet penetration of ideology, occupying the network ideological and cultural position with socialist ideology and maintaining Chinas ideology security to analyze the basic elements and their mutual relationships and to build the system to maintain the long-term effective mechanism for Chinas ideology security from leadership supervision, early warning and feedback, information guiding and filtering, content freshening, and to analyze the operating conditions, strategies and safeguard to maintain the long-term effective mechanism for Chinas ideology security. Key words: network ideology; security; long-term effective mechanism