A good law in form should have the following seven characteristics: first, universality, that is, the rules of law are universal to the subject and universal to the behavior. Universality here means that laws and regulations are not aimed at specific people and specific people's behaviors, that is, this legislation is not a special legislation for characteristic people and characteristic people; The second is clarity, that is, the conditions of legal rules, the contents of rights and obligations, the provisions of violations of obligations and responsibilities must be clear, and the language and words used to express legal rules must be semantic and clear; The third is unification, that is, the rules of a country's laws are integral and consistent, and they are not allowed to conflict with each other. Once they are found to have conflicts, they can be resolved according to a standard. In other words, a country should not have "one country, two systems", "one country, two laws", "one country, three laws" or even "one country, four laws". The fourth is stability, that is, the rules of law are unchanged for a long time. Only when the legal rules are relatively stable can people understand the law, interact with each other and choose their own behavior according to the provisions of the law; Fifth, it is pre-stored. On the one hand, when the state requires people to obey the law, logically speaking, the rules of law should stipulate people's behavior first, while people's law-abiding behavior is behind; On the other hand, when the state tries to accuse a person of his behavior and try to hold him accountable for his behavior, it must conduct such accusation and investigation according to the rules of established laws; Sixth, it is feasible, that is, the requirements of legal rules for human behavior must be achievable and realistic; Seventh, openness, the law must be published to be known to people, and only in this way can people follow it. Only when people know the law, when people break the law, can the state punish the offenders reasonably. The openness of law has become the most basic nature of law in a society ruled by law.

The seven characteristics of the above-mentioned laws are the characteristics that the laws of a country ruled by law should have in form, or the principles that the laws themselves should embody in form in a society ruled by law. This legal form itself is very important to the rule of law in the country. This is the initial requirement of a country's rule of law. Although the existence of these principles, or the expression of these principles, does not necessarily mean that a country has a country ruled by law, but the absence of these principles inevitably means that a country does not have a country ruled by law.