Erlang Township is a township of Cheng County, Gansu province, China. As of 2023, it administers the following ten villages:Tanhe Village (谭河村) Zhuangzi Village (庄子村) Dianzi Village (店子村) Wuba Village (武坝村) Zhaoba Village (赵坝村) Yabei Village (崖背村) Yanhe Village (严河村) Liuping Village (刘坪村) Anzi Village (安子村) Caoyin Village (曹阴村)