Xi Jinping Thought on the Rule of Law is the guiding ideology of China’s comprehensive rule of law, and it is also the value orientation of the construction of the socialist belief in rule of law with Chinese characteristics in the new era. The belief in the rule of law is the core of modern legal belief, which is full trust in the socialist concept of the rule of law and conscious compliance with the legal system. Establishing a belief in the rule of law is conducive to promoting the spirit of the rule of law, cultivating a culture of the rule of law, creating a rule of law environment in which all the people respect the law, and encouraging people to actively pursue fairness, justice, and freedom. In order to guide all the people to support the rule of law and be loyal advocates and defenders of the socialist rule of law, we should always take Xi Jinping Thought on the Rule of Law as the guiding ideology. At the same time, we should vigorously promote the construction of the belief in the rule of law in the new era in the practice of legislation, law enforcement, judiciary, and rule of law publicity.