Structure and operating mode of the Hetman National Park are described in the article. It is specified that the preservation of new territories continues to be the important direction of environmental activity in Sumy region. The state documents were analyzed, on the basis of which this object had been designated as a nature reserve fund. Hydrological nature reserves of national and local significance and other protected areas, which were aggregated to create a national park were identified. The division of the reserved territory into several functional zones is illustrated. The basic operating modes of the park are presented.