The invention discloses a high-throughput detection method for seawater corrosion resistance of high-strength steel. The high-throughput detection method is suitable for the corrosion of metal in a marine environment and the evaluation of the ability of the metal for resisting local corrosion, and belongs to the technical field of performance detection of metal materials. According to the high-throughput detection method disclosed by the invention, high throughput of a wire beam electrode is utilized, the characteristics of local corrosion are analyzed and a metal corrosion mechanism is researched by AC impedance; by combining a circle soaking corrosion device to simulate a marine corrosion environment, the corrosion of the high-strength steel in a complex seawater environment is monitored, potential current information of the surface of the high-strength steel is monitored, generation, development and change of the local corrosion of the high-strength steel are studied and a corrosionmechanism of the high-strength steel is determined by utilizing an AC impedance test means.