Quang Thuan tangerine fruit is speciality one, known for a long time in Quang Thuan commune, Bach Thong district, Bac Kan province. Quang Thuan now has about 400 ha of speciality citrus, including more than 200 ha has been harvested. Tangerine's annual output reaches above 2000 tons. With the current prices, the households' earnings is ftom tens of millions to hundreds of millions per year. The paper is a research of citrus production situation in a number of households in Quang Thuan commune to evaluate the ecnomic efficiency, then offering specific solutions to improve productivity, crops' quality, and enrich the local economy.