In Japan, the government has many regulations and guidelines for firms. According to the Management and Coordination Agency's report, there are precisely 11,402 government permits and licenses in 1993. It means that individual's ”freedom of choose an occupation” or ”freedom of economic activities” has to be severely regulated by the government. On the other hand, within Japanese Constitutional theory, freedom of economic actives is classified as one of the rights to freedom, such as freedom of mental activities and freedom from bondage. In this context, freedom of economic activities is the individual's right to reject interference of the state. Therefore, the legitimation of these regulations becomes an arguable issue. This paper attempts to discuss this issue from the viewpoint of law.