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Through the development of rules in natural law and positive law we cannot see an organized way or specific formula for making rules. So that it’s difficult to each of theme for satisfy their fans that their rules is reasonable. And of course both of theme fails in satisfy other school’s fans. We know that the evolution of rules of law follow up by any nations in different way and we review their experience in this article. After this، we try to introduce a new approach that is partially derived from the Islamic legal system. In new approach that we named it as Problem-Judgment system، every anomaly or abnormal phenomena in the society considered as a problem that we must response it by judgment. This method is very similar to problem solving system in the science. In problem-judgment system، judgment is not merely an abstract or pure will. Judgment is eligible for solving the problem, when has certain mandatory specifics to be considered a sufficient answer to their problem.