High-performance ZnSnO/AgNW bi-layer transparent electrode was prepared by the processes of spin coating and magnetron sputtering. The morphology and phase structure of ZnSnO/AgNW bi-layer electrode were characterized and analyzed by X-ray diffractometer and scanning electron microscope, and the electrical and optical properties of ZnSnO/AgNW bi-layer transparent electrode were characterized by UV-visible spectrophotometer and four-probe tester, respectively. The experimental results show that the ZnSnO/AgNW bi-layer transparent electrode displays excellent electrical and optical properties. Under the optimal conditions, the square resistance is 12.3Ω/□ at transmittance of 88.1%, while the quality factor is as high as 231. The ZnSnO/AgNW bi-layer transparent electrode is tested for 1000 bends at a curvature radius of 5.0mm, and its resistance increased by only 13%, demonstrating its excellent flexibility. In addition, the square resistance remained basically unchanged after 20 tape adhesion tests and high temperature and humidity tests, indicating its excellent adhesion and oxidation resistance.