Xi Jinping Thought on the Rule of Law contains profound thoughts on the rule of law in supervision, and has formed a three-dimensional and multi-level system of thoughts on the rule of law in supervision on both theoretical and practical levels. From a theoretical perspective, it includes the Party's leadership thinking, thinking of the people as main body, the Chinese rule of law thinking, and the overall anti-corruption thinking; from a practical perspective, it emphasizes the implementation of the Party's leadership in anti-corruption practices, enhancing the people's happiness through anti-corruption legalization, promoting the transformation of the advantages of the supervision system into the effectiveness of supervision and governance, and promoting the high-quality development of anti-corruption work with high-quality supervision. The legal thought system of supervision expresses the basic logic and core meaning of the continuous deepening of the reform of the state supervision system in the new era, that is, the Party uses the rule of law to realize the comprehensive supervision of the operation of public power. Xi Jinping Thought on the Rule of Law has developed the thinking on the rule of law in supervision and led the practice of the rule of law in supervision to a new height. The Party's leadership is more embodied in systems in promoting the comprehensive rule of law, anti-corruption is more effective for the people, the rule of law is more supported by talents, and the comprehensive anti-corruption is more guaranteed by the rule of law.