Tailai County is under the jurisdiction of Qiqihar City, Heilongjiang Province, located in the southwest of Heilongjiang Province, located in Heilongjiang, Jilin, Inner Mongolia three provinces (regions) junction, known as "three provinces". Tailai County covers an area of 3996 square kilometers, with jurisdiction over 8 towns, 2 townships, 83 administrative villages and 532 natural villages. There are Han, Mongolian, Manchu, Hui, Korean and other 20 ethnic groups. Tailai County is one of the earliest places in Heilongjiang Province. In the Liao Dynasty, Shangjing Road Taizhou was built, and Tailai County was set up in 1916. According to the seventh census data, as of midnight on November 1, 2020, the permanent population of Tailai County was 249,153.

Tailai County enjoys the reputation of "the hometown of fish and rice". It has been designated by the state and the province as semi-farming and semi-grazing county, commodity grain production base county, fine wool sheep and commodity cattle base county, fruit tree base County, China Mung bean Town, China Peanut "Four Grain Red" town, member units of China Seed Group, corn Special Base County of Heilongjiang Province, 2019 National Village Cleaning Action advanced county. On May 5, 2019, Heilongjiang provincial government approved the withdrawal of Telai County from the poverty-stricken county list.
In 2020, the GDP of Tailai County is expected to reach 6.4 billion yuan, an increase of 6%; Budgetary revenue for public finance is projected to reach 500 million yuan, an increase of 35%. China's investment in fixed assets is projected to reach 2.4 billion yuan, an increase of 25%. The per capita disposable income of urban residents is expected to reach 21,232 yuan and that of rural residents is expected to reach 10,104 yuan, up 6 percent and 10 percent respectively.