The fusion approach of ideological and political education into specialty courses, which has a high ratio of credits, determines the success in building up the ideological and political education system. Meanwhile, it is a challenge for the civil engineering teachers to fuse the ideological and political elements into specialty courses seamlessly and educates students naturally. Design principle of concrete structures is taken as an example to discuss the aims, strong points, and fusion approach of ideological and political education in specialty courses. In specialty courses of civil engineering, the aims of ideological and political education can be set in the views of political and national identities, moral characters and professional ethics, as well as academic ambition and scientific spirit. The introduction part of each curriculum always includes the outlines, engineering applications, development history, and learning methods of the curriculum. The elements of political and national identities, as well as moral characters and professional ethics can be refined and fused into the introduction part. In the sections of professional knowledges, academic ambition and scientific spirit elements can be refined and fused by using historical literatures and classical experiments in the development of the professional knowledges.