We demonstrate a synthetic approach to selfassembly ZnO nanostructures on flat, spherical and curved surfaces. Self-assembly of ZnO nanorods was performed in aqueous solution. The effects of electric field, biopolymer assistance, as well as grow parameters, like temperature and molar ratio are studied. The nanostructures were investigated by SEM, XRD, EDX and TEM. All diffraction peaks of the ZnO nanostructures are well indexed to the hexagonal (space group P63mc) zinc oxide. Self-assembly ZnO nanostructures showed an encouraging characteristic and can be applied in future nanoscale fabrication. The self-assembly, as a tool to manipulate objects at nanoscale, offer possibility to be used in fabrication of electronic and photonic nanodevices applications.