||The area of Tanjung Puting National Park was originally Sampit Wildlife Sanctuary, which was established by the Dutch East Indies colonial government through the order of the Governor General. 39, dated 18 August 1937 with an area of 205,000 ha. In 1941, the area was listed as the Sampit Nature Reserve (205 thousand ha) and Kotawaringin Nature Reserve (100 thousand ha). This nature reserve is intended primarily for the protection of orang utans (Pongo pygmaeus) and proboscis (Nasalis larvatus).
Sampit Wildlife Sanctuary later in the 70s was renamed as Tanjung Puting Wildlife Reserve, which after the re-set boundary to an area of 270,040 hectares based on the Decree of the Minister of Agriculture no. 43 / Kpts / DJ / I / 1978, dated April 8, 1978. Several months later, based on the Decree of the Minister of Agriculture no. 698 / Kpts / Um / II / 1978, dated 13 November 1978, this wildlife reserve is expanded with forest area between Serimbang River and Segintung River so the whole area is 300,040 Ha.
Earlier in 1977, the Tanjung Puting Wildlife Reserve was incorporated into the list of Biosphere Reserves in Indonesia designated by UNESCO.
Tanjung Puting is then declared as a candidate for national park through Minister of Agriculture Decree no. 736 / Mentan / X / 1982, dated 14 October 1982.
To base the field activities, the Director General of PHPA through Decree No. 46 / Kpts / VI-Sek / 84, dated December 11, 1984, stipulates that the working area (candidate) of Tanjung Puting National Park is Tanjung Puting Wildlife Reserve of 300,040 Ha.
Furthermore, based on Decree of the Minister of Forestry No. 687 / Kpts-II / 1996 dated October 25, 1996 on “Change of function and designation of forest area located in Regency of Region II of West Kotawaringin and Regency of Region II of East Kotawaringin, Province of Tk I Central Kalimantan Area of 415,040 Ha to Park National “, this area was changed its function and designated as Tanjung Putting National Park. This new area is the result of the addition of the Tanjung Puting Wildlife Reserve area of 300,040 ha, with the former production forest of PT Hesubazah concession area of 90,000 ha and the surrounding water area of 25,000 ha.