Fushun was in ruins in the one-and-a-half centuries of early Qing dynasty. In 1783, the new walled city was completed southwest of the old city. In 1908, Fushun became the seat of Xingren County (, later renamed to Fushun County). Fushun was occupied by Russia until 1905 and by Japan until 1945. With the Japanese victory over Imperial Russia and signing of the Treaty of Portsmouth, the South Manchuria branch (from Changchun to Lüshun) of the China Far East Railway was transferred to Japanese control. South Manchuria Railway Company quickly expanded the system inherited from Russia to staggering proportions. Coal mines were developed at Fushun. Under the control of the Japanese and with 30 years of development, Fushun area became highly industrialized. Fushun gained city status in 1937.