Abstract: Remaining true to our aspiration and keeping our mission firmly in mind are the political beliefs of the Communist Party of China,the institutionalization of which is a major innovation.Constructing the institution of remaining true to our aspiration and keeping our mission firmly in mind is to build a system of institutional norms according to the nature,purposes and goals of the Commu-nist Party of China,develop actionable and evaluable standards,and thus make all the Party members firm their ideals and convictions.The significance of constructing the institution of remaining true to our aspiration and keeping our mission firmly in mind is that it is the institutional guarantee of anticorrosion,the important objective of the modernization of state governance and the theoretical sublimation of the successful construction experience of the Communist Party of China.The inevitability of constructing the institution of remaining true to our aspiration and keeping our mission firmly in mind is that it is the inevitable requirement of the Party spirit,the positive con-formity to the law of historical development and the creative application of the ideological motivation principle.The basic paths of the in-stitutional construction are increasing the awareness that remaining true to our aspiration and keeping our mission firmly in mind are the eternal tasks of strengthening the Party construction for all the Party members,standardizing the learning system of Marxism,the histo-ry of the Communist Party of China and national conditions,and establishing working mechanisms and evaluation systems that can carry out the institution practically,meticulously and specifically.