Abstract: "To teach the truth deeply, thoroughly and vividly" provides the fundamental compliance and evaluation criteria for teachers to teach the ideological and political course. To teach the course of ideological ethics and rule of law in higher vocational colleges deeply, we must insist on the key issues of the textbook, insist on clarifying the difficult problems of students, and insist on focusing on the teaching effect. To teach the course of ideological ethics and rule of law in higher vocational colleges thoroughly, we should focus on concreteness and explain clearly the truth of "What is"; Focus on the "Three big", explain the principle of "Why"; Focus on the students, and explain the "How to do" reason in place. To teach the course of ideological ethics and rule of law in higher vocational colleges vividly, we should "Animate" the class with activity carrier, "Activate" the class with story carrier, and "Invigorate" the class with technology carrier. The comprehensive application of "Three Insistence"; "Three Focuses"; "Three Reinforcement" is conducive to promoting the high-quality development of ideological and political education in higher vocational colleges.