马克思主义科学无神论是无神论发展的最高形态,它在建设社会主义核心价值体系中发挥着哲学指导、思想保证、文化动力等作用。目前,发挥科学无神论在建设社会主义核心价值体系中的作用面临一系列困境。如社会各群体对科学无神论在建设社会主义核心价值体系的作用认识上存在盲区、有神论思想的存在消解了社会主义核心价值体系的引领作用、有神论思想的普遍化致使社会不同群体精神家园的迷失等。探析以上困境,对建设社会主义核心价值体系、构建中华民族共有精神家园具有重大现实意义 Scientific atheism in Marxism is the highest form of atheism development. It plays a role of philosophical guidance, ideological guarantee and cultural motivation in building a socialist core value system. At present, the role of scientific atheism in building a socialist core value system faces a series of difficulties. Such as social groups on the science of atheism in building a socialist core value system awareness of the existence of blind spots, the existence of the theosist dispels the leading role of the socialist core value system, the universalization of the theosophobia led to the social groups lost their spiritual home, etc. . To analyze the above dilemmas is of great realistic significance for building a socialist core value system and for building a common spiritual home for the Chinese nation