Mechukha or Menchukha is a town, assembly constituency and subdivision, situated 6,000 feet above sea level in the Mechukha Valley of Yargep Chu/ Siyom River in Shi Yomi district of Arunachal Pradesh state of India. Before the 1950s, Mechuka valley was known as Pachakshiri.
Line of Actual Control India-Tibet border 29 km north of Menchuka separates Indian territory and Chinese territory. Mechukha has a AGL airstrip. Reachable by one of the strategic India-China Border Roads, it is located 47 km northwest of district head office Tato and 187 km north of Aalo.