Pre-Tang dynasty • In the
Xia dynasty and
Shang dynasty, Belonging to Yuzhou from the book “Yugong” (). • In the
Zhou dynasty, is the land of Shen (), Xie (), Tang () and Liao () Kingdoms. • In the
Qin dynasty, the Huyang () County was set, and belonged to the
Nanyang Commandery (). • In the
Western Han dynasty, the
Eastern Han dynasty and
Three Kingdoms, was Huyang County (town), and belongs to the Nanyang region. • In the
Jin dynasty (266–420), 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.
Tang dynasty and later In the first year of Zhenguan (672 A.D.) of
Tang Emperor Taizong, the Shangma County was incorporated to the Huyang County, and the Huzhou () state was abolished and be changed to Tangzhou () (the State government in Zaoyang now). In the 9th year of Tang Emperor Taizong, the State government was moved to Biyang () (the
Biyang now). In the 13th year of Kaiyuan (725 A.D.) 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 (742 A. D.) of Tang Emperor Xuanzong, the Shangma County was renamed Biyang () County (the County government is near the urban district of Tanghe County now), and belongs to Tangzhou State. In the 3rd year of Tianyou (906 A.D.) of Tang Emperor Aidi, the state government was moved from Biyang () to Biyang () (now the urban district of Tanghe County), and Tangzhou State was renamed to Bizhou () State. In the
Five Dynasties and Ten Kingdoms, it was named the Biyang () County, then belonging to Bizhou State, Tangzhou State and Bizhou State in the Later Liang Kingdom, Later Tang Kingdom and Later Jin Kingdom, respectively. It then belonged to Tangzhou State in the Later Han and Later Zhou Kingdom. In the
Song dynasty and
Jin dynasty (1115–1234), was Biyang () County and Huyang County, all belongs to Tangzhou State.
South Song dynasty In the 11th year of Shaoxing (1141 A.D.) of
Song Emperor Gaozong, it belonged to Jin Kingdom, and returned to South Song in the 31st year of Shaoxing. In the 2nd year of Longxing (1164 A. D.) of South Song Emperor Xiaozong, belonged 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 (1213 A.D.), the Huyang County was abolished and incorporated to Biyang () County (now Tanghe) as Huyang Town, and belongs to Tangzhou State. In the 1st year of Duanping (1234 A.D.) of South Song Emperor Lizong, the Jin Kingdom was eliminated by the union of Mongol Kingdom and Song Kingdom, the Biyang () County (now Tanghe) returned to South Song and belongs to Tangzhou State.
Yuan dynasty During the
Yuan dynasty in the 2nd year of Zhiyuan (1265 A.D.) of Yuan Emperor Shizu
Kublai Khan, the Huyang County was re-established separate from the Biyang County (now Tanghe) and belongs to Tangzhou State. At this time, the Tangzhou State administered Biyang () (now tanghe), Huyang, Biyang () (now Biyang) and Tongbai this four Counties. In the 3rd year of Zhiyuan (1266 A.D.), the Huyang, Biyang () and
Tongbai Counties were abolished and set Huyang, Biyang () and Tongbai Town, respectively, and incorporated to Tangzhou State. Then the Biyang () (now tanghe) 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 (1271 A.D.), belongs to Nanyang Fu ().
Ming dynasty In the 2nd year of Hongwu (1369 A.D.) during the
Ming dynasty, the Tangzhou State was abolished and set Tang County (govern the urban district of now Tanghe), belongs to Nanyang Fu. In the 14th year (1381 A.D.), the Biyang () Town was separated from Tang County and set Biyang () County (govern the now Biyang County). In the 12th year of Chenghua (1476 A.D.), the Tongbai Town was separated and set Tongbai County (govern the now
Tongbai County).
Qing dynasty During the
Qing dynasty, the governance was inherited and followed the system of the Ming dynasty.
Republic of China In 1912, Tanghe was Tang County, belonging to Nanyang Fu. In 1913, renamed the Biyuan () County, belongs to Yunan (South Henan) Road. In 1914, changed and belongs to Ruyang Road. In 1923, renamed Tanghe County, belong to Ruyang Road. In 1927, the Ruyang Road was abolished, the County belongs to Henan Province. In 1932, changed and belongs to the Sixth District Chief Inspector of Henan Province. In November 1948, the county was captured by the PLA. On December 28, the Tanghe County (also named Tangbei County, government located in the now urban district), Tangnan County (dominate the south of Sanjiahe River, government located in the now Qiyi Town) were established. In the August of next year, the Tangxi County (government located in the now Zhangdian Town). In 1947–1948, the Tanghe (or Tangbei), Tangnan and Tangxi Counties in the territory, and all belongs to the First Patriotic Democratic Chief Inspector of Tongbai Region. In winter 1948, the Tanghe (Tangbei) County was changed and belongs to the Second Patriotic Democratic Chief Inspector of Tongbai Region. In March 1949, the Tanghe (Tangbei), Tangnan and Tangxi County merge into Tanghe County, the county government located in now Tanghe County, belongs to Nanyang Region.
People's Republic of China Post-1949, the area remained Tanghe County, still belonging to Nanyang Region. ==Administrative divisions==