Abstract: We develop a hydrothermal in situ growth of Nickel-Ruthenium alloy nanoelectrode for quantum dot solar cell (QDSC) applications. QDSC based on Ni-Ru alloy electrode delivers a much higher power conversion efficiency 1.96% than its counterparts, i.e., either pure Ni or Ru metal electrodes. In detail, Ni-Ru alloy electrode exhibits high specific area, excellent electrical behavior, intimate interface contact, and good stability, thus leading to notable improved device performances. The impressive robust function of Ni-Ru alloy with simple manufacturing procedure highlights its potential applications in robust QDSCs.