The Arunachal Pradesh University, Pasighat is located on the right bank of Siang River (Brahmaputra) where the river enters the plains at Pasighat after an arduous long journey through the hills, starting from Tibet. Here, the river looks relaxed and flows sluggishly after long journey of tumbling rapids.

The Arunachal Pradesh University overlooks the mighty Siang and enjoys the cool wind that rise after hitting its right bank. Being located at most humid part in the North East Region of India, The university is surrounded by thick evergreen tropical forest with impenetrable undergrowth.

The University is situated at the corridor of migration of present inhabitants from north taking the Siang River as guide in their journey to south. Today, Pasighat is inhabited by Adi, Galo, and other ethnic group of people. These indigenous people are very rich in oral literature, particularly in the history of their migration.

Developed during British Period, Pasighat is the oldest town in the state of Arunachal Pradesh. It is connected to Guwahati and Itanagar by National Highway NH 515, Dibrugarh by Bogibeel Bridge, Aalo and Eastern part of the state with all weather road. Within the town, there is an airport. Nearest Railway station is at Murkong Selek, Assam, about 40 km. away from Pasighat. Thus, Pasighat is the best connected town in the state of Arunachal Pradesh. Pasighat town has been declared as first Smart City of the State.