Tong'anyi Town is located in the north end of Longxi County, with a total land area of 217 square kilometers and a cultivated area of 10.04 million acres. The average altitude of 1950 meters, the average annual precipitation of 460 millimeters, the average annual temperature of 6.5 ℃, frost-free period of 140 days. Jurisdiction of 16 village committees. The total number of households in the township is 5776, the total population of the township is 25859, and the number of employees in the township is 12930. 16 villages are connected with electricity, postal service and telephone, 7 villages are connected with telephone, 4 villages are connected with piped water, and 2 villages are connected with cable TV. There is a hospital, health center, 26 doctors, 30 beds. There are 24 schools of various types, 268 teachers, 5868 students. 2004, the gross domestic product of 32.04 million yuan, 4427 hectares of grain sown area, the total grain output of 8053 tons, the net income per capita of farmers 1443 yuan; financial income of 830,000 yuan, financial expenditure of 830,000 yuan.