In 380, when his cousin Fu Luo (苻洛) the Duke of Xingtang rebelled in You Province (幽州, modern Beijing, Tianjin, and northern Hebei), Fu Rong was the supreme commander of the forces attacking Fu Luo, although he did not personally engage Fu Luo before the general Lü Guang defeated and captured Fu Luo. Later that year, Fu Jiān recalled Fu Rong to serve as a prime minister, replacing Wang Meng, who had died in 375. Fu Pi took over as viceroy of the six provinces.