Lancang County, located on the West Bank of Lancang River, is the only Lahu Autonomous County in China.

Lancang has the largest continuous, best preserved and oldest artificially cultivated ancient tea forest ever found in the world, the ancient tea forest of Jingmai Mountain in Pu'er City. At present, the ancient tea forest of Jingmai Mountain in Pu'er City is declaring the world cultural heritage.

In 2017, Lancang County was awarded "the best destination for health-preserving leisure and vacation tourism in China" and "the national humanistic and ecological tourism base".

At present, Lancang Jingmai Airport has been put into use, with three non-stop flights from Kunming to Langcang every day.