This essay is an attempt to analyze the precedent law of the European Court of Human Rights. The essay analyzes the precedent law as a theory and its models giving examples on national legal systems. The precedent law of the European Court of Human Rights is one of the complicated issues, because there is not general theoretical view on it. The precedent law of the Court is developing and gains new features. The Court uses its previous consequences in previous decisions on a subsequent case as a precedent norm. The Court creates a case law system that influences legal reforms in national legal order. The aim of the essay is also to analyze modern views on precedent law of the Court and on its influences into national legal systems analyzing example of Azerbaijan Republic by using the analyzing model of methodology for research aims.