Abstract: The $Introduction~to~the~Critique~of~Hegel$'$s~Philosophy~of~Right$ bears witness to the change of Marx's philoso-phical stand and revolutionary attitude, which can be seen in Marx's reflection on and disclosure of German religious problems, institutional defects and philosophical limitations. Following the principle of reality, pertinence, focus and mission, and starting from religious criticism, Marx made in-depth criticism of the German system and philosophy, and explored the possibility of realizing human liberation. To prevent and resolve ideological risks in the new era, we should draw theoretical and metho-dological reference from Marx's criticism to fight against wrong trends of social thoughts. We should dare to combat against the wrong trend of thought in order to expose its infiltration, to focus our criticism of the wrong trend of thought on its substance and political intention and to carry out systematic criticism in diversified ways to deconstruct the core of wrong social thoughts; we should carry out mission-oriented criticism around the cause development, so as to build a strong ideological defense line for the mainstream ideology, and to provide a strong ideological guarantee and spiritual impetus for the realization of Chinese-style modernization.

Key words: Introduction to the $Critique~of~Hegel$'$s~Philosophy~of~Right$, critical thought, the critical principle, trend of social thoughts, ideology, the new era