Natural environmental protection system in North Korea is rarely understood mainly because of lack of information in scientific and legislative fields. Legislation is very important to achieve goal for protected areas, which are described in "Natural Protected Area Law(NPAL)". Cabinet of North Korea has authorities to lead the Central Agency for Land and Environment Conservation(CALEC). Designation and managements of natural protected areas are regarded as CALEC and local governments responsibilities. There are many differences between South and North Korea. Especially legislation system has many differences. North Korea's Labor Party is superior to the Government and Labor Party's order has at least the same authority to regulate and manage the national policy and means. With NPAL, CALEC organizes the national plan for natural protected area and regulate the activities of the Agencies for Land and Environment Conservation in the aspects of action plan, budget and other resources. For the reunification in the future, legislation system of North Korea should be understood.