Three　＂double-cable＂　conjugated　polymers　with　thienopyrroledione-based　backbone　and　perylene　bisimide　as　side　units　were　designed　as　electron　acceptor　for　polymer-polymer　solar　cells.　The　polymers　show　broad　absorption　spectra　and　low-lying　frontier　energy　levels　due　to　both　aromatic　backbone　and　side　units.　The　new　double-cable　polymers　can　be　used　as　electron　acceptor　to　combine　with　several　electron　donors,　in　which　power　conversion　efficiencies　above　3%　could　be　achieved.