The invention relates to a four-cable-plane codirectionally turning stay cable-suspended cable cooperation system bridge. The four-cable-plane codirectionally turning stay cable-suspended cable cooperation system bridge comprises bridge towers, anchorages, a main beam, stay cables, suspended cables and lifting cables, wherein a midspan adopts four-cable-plane stay cables and lifting cables; crosslifting cable zones are transformed into double-cable-plane stay cables and lifting cables; side span main bodies adopt four-cable-plane full-stayed type stay cables; tail end cross lifting cable zones adopt double-cable-plane stay cables and lifting cables to form a suspended auxiliary span; space double-suspension-cable saddle seats are arranged at the tops of the bridge towers; stay cable codirectionally turning saddle seats are arranged under the space double-suspension-cable saddle seats in a layering manner to form a hoop pressure-bearing structure, so that a multi-cooperation system bridge with reasonable structure and complementary advantages is constructed. The integral rigidity of the bridge is improved; the smooth integration of the system is achieved; the conventional problemsthat the bridge surface of the system junction is complexly anchored, the pressure of the main beam is discontinuous, and the side lifting cables and the stay cables are high in tail cable stress aresystematically solved; the stress state of the anchor cable zones of the bridge towers is fundamentally changed; the four-cable-plane codirectionally turning stay cable-suspended cable cooperation system bridge shows great technological and economic advantages.