In August 1945, the Soviet Army invaded Manchukuo, taking over management of all railways in the former Manchukuo, creating the China Changchun Railway; the Binbei Line was put under the jurisdiction of the Qiqihar Railway Bureau. The Soviets transferred control of the China Changchun Railway to China in 1955, at which time this line became part of the China Railway system. In 1957, the line was transferred to the jurisdiction of the Harbin Railway Bureau, and double-tracking of the Sankeshu–Suihua section of the line was completed. Double-tracking of the rest of the line was completed in 1962.