The purpose of modern civilization is its secure development without which it is impossible to exist in the future. Activities in this development begin with its modeling, which is carried out through the legal regulation of this process. The basis of legal regulation is law. Without his correct understanding, it is impossible to build an effective system of legal regulation of the safe development of society. Along with this, the existing concepts of law and the practice of their implementation are not based on its essence, substance principles. The legnaturalistic concept of law which is proposed in the article is based on these basics. It is made its characteristics, it is formulated law classification on which it is built and there are given the types of laws of safe development of society.