The constitution uses the term “rule” relatively rarely. We look for principles in an exponential way, thus establishing principles-norms and descriptive principles. Both of these categories are based on “system patterns” derived from legal science and jurisprudence. We apply numerous principles of constitutional law to administrative law. The principles of administrative law can be formulated on the basis of the Constitution, examples of which are provided in the text. At the same time, we take advantage of the inspiration of international law, but we can also derive from it rules which are self-binding in Poland, e.g. the validity and substitution character of the sources of EU and international law.