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Traditional dye-sensitized solar cells were based on nanoporous TiO2 photoanodes.Recently, hierarchical nanostructure has attracted much interest due to their enhancement of surface area and a direct conduction pathway for the rapid collection of photo generated electrons.We proposed that using one-dimensional ordered ZnO nano-array as the direct path of the electron transport, reduce the electron capture and recombination rate by the defects.Hierarchical structured TiO2 was prepared on ZnO nano-array, to improve the dye adsorption capacity.Larger surface area and good crystallinity can be achieved by structural design of photoanodes.The two-step process is to prepare hierarchical structure.ZnO nano-array was prepared on transparent conductive fluorine-doped SnO2(FTO) substrates by ZnO seed-layer assisted chemical bath depositon.Then branched TiO2 was obtained by magnetron sputtering.The results shows that variety morphologies of TiO2 formed on the top and side of ZnO nanorod array, which dominated by a vapor-solid mechanism.The microstructure can be affected by O2/Ar ratio and annealing temperature.This type of hierarchical structure photoanodes may have great potential for DSSC applications.