Tongzi County is a county under the jurisdiction of Zunyi City, Guizhou Province. Located in the north of Guizhou Province, bordering on Chongqing, it is known as the "gateway to northern Guizhou" and "the hub of Sichuan and Guizhou". It is "the hometown of bamboo shoots in China". With a total land area of 3,202 square kilometers, Sichuan-Guizhou Railway, 265, 438+00 National Highway and Yuzhan Expressway run through the county, and it takes about 2 hours to drive from the county to Guiyang and Chongqing, so the traffic location advantage is obvious.