The communism belief reflects people’s recognition and affirmation of the scientific truth and value rationality contained in communism. It has the characteristics of science, sublimity and practice. In the era, communism still exudes a strong value because it can transform itself from an abstract dimension into a realistic dimension. The focus on the real world on this shore is compatible with the needs of human nature. It points out the direction of the party’s construction and “Chinese dream”. However, in the contemporary society with utilitarianism and the decline of three outlooks, frequent social conflicts and discourse traps drafted by western countries are silently mutilating and destroying the communist belief system. Many party members have emerged the phenomenon of faith swing. To reshape the communist belief, it is necessary to guide party members to dialectically and rationally believe in communism. Then it is possible to scientifically integrate and guide various ideas and rely their belief practice on the resolution of social realities.