Longnan's economy has traditionally been based on agriculture, forestry, and mining. The region's subtropical climate allows for diverse crops not found elsewhere in Gansu, including tea, citrus fruits, walnuts, and Sichuan peppercorns.
The most remarkable economic development in recent decades has been the rise of Longnan's olive oil industry. The first olive trees were introduced in 1964 by Chinese agricultural scientists searching for suitable olive-growing regions. Today, Longnan has over 300,000 mu (20,000 hectares) of olive orchards, producing award-winning extra virgin olive oil that supplies both domestic and export markets. Several brands have won international olive oil competitions.
Tourism is a rapidly growing sector, driven by the region's unique natural attractions — giant panda habitats, karst caves, and forest eco-tourism areas. Improved transportation, including the Lanzhou-Chongqing High-Speed Railway, has made Longnan more accessible to domestic tourists.
Mining remains significant, with Longnan possessing substantial reserves of lead, zinc, gold, and antimony. The city's manufacturing sector focuses on agricultural processing, olive oil production, and building materials. Longnan's GDP is approximately 54 billion yuan.