Douliu is a county-administered city and the county seat of Yunlin County, Taiwan. It is also the political and economic center of the county. Dou…Douliu is a county-administered city and the county seat of Yunlin County, Taiwan. It is also the political and economic center of the county. Douliu City is served by National Highway No. 3. Its former name came from a language of the Hoanya people, a tribe of the Taiwanese plains aborigines.