Here is a comprehensive summary of the China–Nepal border:

The China–Nepal border stretches 1,389 kilometers along the Himalayan mountain range, dramatically including the summit of Mount Everest, the world's highest peak, and runs from the Tinkar Pass in the west to Jongsong Peak in the east. Its modern configuration was drastically shaped by China's 1951 annexation of Tibet, which was formally recognized by Nepal through key agreements in 1956 and 1960, followed by a definitive boundary treaty in 1961 that delimited the precise line and was demarcated with pillars by 1963. Historically, the region was a fluid frontier of trade in goods like wool and salt, with the western Byansi people shifting their routes between Indian and Nepali passes following the 1962 Sino-Indian War. Today, the border remains a point of tension, particularly at the disputed Kalapani territory tripoint with India, where Nepal objected to a 2015 India-China trade agreement at Lipulekh Pass. Although Nepal often downplays disputes with China to protect economic ties, its government quietly documented and subsequently censored a report of Chinese border infringements in 2021.