Abstract: The mechanism of the socialism core value system to eagerly anticipate the social ideological trends refers to the construction of a series of systems and the rule arrangements, which are helpful for displaying the function of socialism core value system, strengthening its guidance to the social ideological multi-trends, and maintining its rule dominant position well in ideology domain. The goals are mainly to construct its mechanisms of self-development of the socialism core value system, integration of the social ideological trends, monitoring of the social ideological trends, guidance on the public opinions, defence against the negative and hostile ideological trends, communication with the diverse society ideological trends, and so on. The breakthrough points for the socialism core value system to guide the social ideological trends are to focus on the key crowds influenced by the social ideological trend, enhance the construction of the mechanism of benefit integration and guidance, and erect the system of monitoring and reflecting the society ideological trend dynamically.