MnO2 film/multilayer graphene film/Ni foam (MnO2/MGF/NF) is facilely proposed. The MnO2 film has a dense 2D structure with a hierarchically porous surface. The MnO2 loading quantity and electrical properties depend on MnO2 loading time. The MnO2/MGF/NF flexible supercapacitor exhibits good electrochemical properties.