A flexible harvesting metasurface operating at 2.45 GHz has been developed for microwave wireless energy transmission. This design employs flexible materials such as EGaIn and polyimide, utilizing an orthogonal cross structure for feed coupling, which enhances the metasurface’s adaptability in complex environments while achieving high harvesting efficiency. Simulation results indicate that at the frequency of 2.45 GHz, when the incident wave is perpendicular, the absorption efficiency reaches 99%, while the harvesting efficiency is 82%. The harvesting efficiency can exceed 75% across various bending conditions. Measurement outcomes demonstrate that the harvesting efficiency remains above 60% under different incident angles. The proposed flexible metasurface has been fabricated and tested, showcasing its potential applications in wireless energy supply for dynamic targets.