During the war, in order to control traffic, in 1943, Keihan Electric Railway and Hanshin Electric Express Railway merged into Keihanshin Express Railway (currently Hankyu Corporation) and the Shinkeihan Line was put under this company's management.
戦時中の交通統制のため、京阪電気鉄道と阪神急行電鉄は1943年に合併して京阪神急行電鉄（現在の阪急電鉄）となり、新京阪線も同社の運営となった。