To build a strong cyberpower and comprehensively enforce cyber information construction, we must resolutely safeguard cyber ideological security. General Secretary Xi Jinping''s important remarks on safeguarding cyber ideological security answer the major question of "how to safeguard" cyber ideological security under the new national security situation and contain profound theoretical implications. From the perspective of generation logic, the generation of this important discourse is not only an inevitable requirement for practicing Marxist ideological security theory and continuing to develop the Communist Party of China''s ideological security thought, but also a need in response to the situation where the complex cyber space brings huge risks and challenges to ideological security. From the perspective of content structure, the primary premise of this important discourse is to strengthen the Party''s centralized and unified leadership over cyber security and informatization work. The basic requirement is to enhance the effective supply of high-quality cyber content. The focus of work is to actively create new mainstream ideological communication media. The essential guarantee is to create and improve cyber ideological laws, regulations and management mechanisms. The foreign-related proposition is to promote the building of a community with a shared future in cyberspace. From the perspective of value implication, this important discourse is of great political, theoretical, practical and global significance.