The natural distribution of eels in China, in addition to the northern Heilongjiang, western Qinghai, Tibet, Xinjiang and South China's South China Sea islands and other areas are very few, other areas have a lot of distribution, more to the middle and lower reaches of the Yangtze River, the distribution of high density, high yield. In recent years, our country vigorously develop aquaculture, artificial introduction of breeding, in addition to Tibet and Qinghai part of the region, Xinjiang, Hainan and other areas also have a lot of introduction of eel farming. Therefore, at present, eels have been widely distributed in freshwater waters throughout China. In foreign countries, eels are mainly distributed in Thailand, Indonesia, the Philippines and other places, India, Japan, North Korea also have distribution.