Lianghe County is located in the west of Yunnan Province and the northeast of Dehong Dai and Jingpo Autonomous Prefecture. It borders Tengchong City in the northeast, Longling County in the southeast, Mangshi and Longchuan County in the south, Yingjiang County in the west, and Shidao Town in the county seat is 690 kilometers away from Kunming, the provincial capital, and 114 kilometers away from Mangshi, the state capital. The north-south longitudinal distance of the county is 49 kilometers, and the maximum east-west transverse distance is 45 kilometers. The land area is 1136.69 square kilometers. The mountainous and semi-mountainous areas account for 87.8% of the total area of the county. It has jurisdiction over 6 townships and 3 towns. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Lianghe County was 134268.

Lianghe County is a typical agricultural county. It is the hometown of Chinese gourd silk. In 2006, the "Zapa Ma and Zami Ma" declared by Lianghe County, Yunnan Province, was included in the first batch of national intangible cultural heritage list. On May 17, 2020, it officially withdrew from the poverty county sequence.

In 2020, Lianghe County achieved a GDP of 4.04 billion yuan, up 15% year on year; The investment in fixed assets was 2.86 billion yuan, up 30% year on year; The total retail sales of consumer goods reached 1.48 billion yuan, up 81% year on year; The local public finance budget revenue was 185 million yuan, up 17% year on year; The per capita disposable income of urban permanent residents was 29973 yuan, up 8% year on year; The per capita disposable income of rural permanent residents was 10509 yuan, up 9.3% year on year.