Each legal system is pervaded by a certain system of values, regardless of its fairness, or practical enforcement of the rights resulting from its rules. In light of the fact that Western legal culture is generally based on Roman Law, but also on Christian morality, it can be argued that Canon Law is the prime medium of its value ideas up to the present day, not only from the theoretical perspective, but particularly from the practical point of view. One of the most significant elements guaranteeing the continuity of its development is also the tradition defined in the broad word concept, which determines the basic value and conceptual outlets of the rules of the Canon Law. Despite the fact that the influence of canonical tradition from the legal point of view was partly diminished after the Second Vatican Council, it can be said in general, that it has henceforth its own irreplaceable place particularly in the interpretation of the rules based on the older law. The primary goal of this article is to point out the importance of tradition and its significance for Catholic theology, but above all the legal system of the Catholic Church.