In order to harvesting electromagnetic(EM) energy effectively in the complex electromagnetic environment, a novel metasurface is proposed, whose unit consists of eight open resonant loops and is arranged in a regular octagon, with the addition of a parasitic patch of regular octagon. Eight resonant rings with the same opening are arranged in rotation, and the inner parasitic patch is used to form a central symmetrical structure. A novel electromagnetic energy collecting surface is designed, which has multifrequency and polarizationinsensitive working characteristics. The microstructures of the metamaterials are analyzed and optimized by the microwave simulation software CST. The electromagnetic energy collection efficiency, the energy distribution and the S parameters of the incident electromagnetic waves are studied. The simulation results show that the maximum collection efficiencies of 82%, 79%, 61%, 71%, 70% and 73% at five frequencies of 5.75, 6.5, 6.84, 7.56, 7.98 and 8.55 GHz when the electromagnetic waves are incident vertically ;In the 0° to 60° at 20° interval oblique incidence, the surface of the TE wave and TM wave can maintain an effective collection efficiency.