Tanghe County is administered by the prefecture-level city of Nanyang, in the southwest of Henan province, People's Republic of China, bordering Hubei province to the south. Its ancient name was Tangzhou. The county consists of 3 subdistrict offices, 12 towns, 7 townships, and 525 administrative villages, with the population being approximately and total area being. Tanghe has more than citizens in those 3 subdistrict offices, and the county government is located in the Binhe subdistrict office. The urban area expands very quickly, especially westwards, under the background of estate boom across China. The local economy is mainly based on agriculture, including wheat, cotton, pears. The investment and support from the Tanghers who work out of Tanghe is very important to the local economy.
In the Jin dynasty, was the land of Jiyang county, and belongs to Yiyang region.
In the Northern and Southern Dynasties, the Northern Wei Kingdom set Zhongli, Xiangcheng, Chenyang, Shima Morogata, respectively belongs to south Xiangzhou, west Huai'an region and Xiangcheng region. The urban district in Tanghe now was the county government at that time, then was the state government and the county government later, respectively.
In the Sui dynasty, there are two Counties named Shangma and Huyang in the territory, and belongs to the Chongling Region.
In the first year of Zhenguan of Tang Emperor Taizong, the Shangma County was be incorporated to the Huyang County, and the Huzhou state was abolished and be changed to Tangzhou . In the 9th year of Tang Emperor Taizong, the State government was moved to Biyang . In the 13th year of Kaiyuan of Tang Emperor Xuanzong, re-established the Shangma County divided from Huyang County, and all belong to the Tangzhou State. In the 1st year of Tianbao of Tang Emperor Xuanzong, the Shangma County was renamed Biyang County, and belongs to Tangzhou State. In the 3rd year of Tianyou of Tang Emperor Aidi, the state government was moved from Biyang to Biyang , and Tangzhou State was renamed to Bizhou State.
In the Five Dynasties and Ten Kingdoms, was named the Biyang County, then belongs to Bizhou State, Tangzhou State and Bizhou State in the Later Liang Kingdom, Later Tang Kingdom and Later Jin Kingdom, respectively. Then belongs to Tangzhou State in the Later Han and Later Zhou Kingdom.
In the Song dynasty and Jin dynasty, was Biyang County and Huyang County, all belongs to Tangzhou State.
In the 11th year of Shaoxing of Song Emperor Gaozong, was belongs to Jin Kingdom, and return to South Song in the 31st year of Shaoxing. In the 2nd year of Longxing of South Song Emperor Xiaozong, was belongs to Jin Kingdom. In the alternately of South Song and Jin, the attribute had no changed. In the 6th year of Jiading of South Song Emperor Ningzong, also the 1st year of Zhining of Jin Emperor Weishao, the Huyang County was abolished and incorporated to Biyang County as Huyang Town, and belongs to Tangzhou State. In the 1st year of Duanping of South Song Emperor Lizong, the Jin Kingdom was eliminated by the union of Mongol Kingdom and Song Kingdom, the Biyang County returned to South Song and belongs to Tangzhou State.
In the 2nd year of Zhiyuan of Yuan Emperor Shizu Kublai Khan, the Huyang County was re-established separate from the Biyang County and belongs to Tangzhou State. At this time, the Tangzhou State administered Biyang , Huyang, Biyang and Tongbai this four Counties. In the 3rd year of Zhiyuan, the Huyang, Biyang and Tongbai Counties were abolished and set Huyang, Biyang and Tongbai Town, respectively, and incorporated to Tangzhou State. Then the Biyang was incorporated to Tangzhou State too. At this time, the Tangzhou State had no County to administrate at all, and belongs to the Jiangbei Road of Henan. In the 8th year, belongs to Nanyang Fu.
In the 2nd year of Hongwu, the Tangzhou State was abolished and set Tang County, belongs to Nanyang Fu. In the 14th year, the Biyang Town was separated from Tang County and set Biyang County. In the 12th year of Chenghua, the Tongbai Town was separated and set Tongbai County.
In the beginning year was Tang County, belongs to Nanyang Fu. In the 2nd year of ROC, renamed the Biyuan County, belongs to Yunan Road. In the 3rd year, changed and belongs to Ruyang Road. In the 12th year, renamed Tanghe County, belong to Ruyang Road. In the 16th year, the Ruyang Road was abolished, the County belongs to Henan Province. In the 21st year, changed and belongs to the Sixth District Chief Inspector of Henan Province. In November of the 37th year, the County was captured by the PLA. In December 28, the Tanghe County, Tangnan County were established. In the August of next year, the Tangxi County. In 1947 – 1948, the Tanghe, Tangnan and Tangxi Counties in the territory, and all belongs to the First Patriotic Democratic Chief Inspector of Tongbai Region. In the winter of 37th year of ROC, the Tanghe County was changed and belongs to the Second Patriotic Democratic Chief Inspector of Tongbai Region. In March of the 38th year, the Tanghe, Tangnan and Tangxi County merge into Tanghe County, the county government located in now Tanghe County, belongs to Nanyang Region.
