Abstract: In order to clarify wind energy resources on Shanghai sea area in the East China Sea, this article analyzed and evaluated meteorological data collected from a buoy in the deep oceanic waters of the East China Sea and a lightship at Nancao offshore waters. It was concluded that the average annual wind velocity was 6.30 m/s at the buoy, and 5.80 m/s at the lightship and the average annual wind velocity at the buoy was 7.9% higher than that of the lightship. The average annual wind power density at the buoy and the lightship was 345.1 W/m² and 239.5 W/m², respectively and the average annual wind power density at the buoy was 44.1% higher than that at the lightship. The turbulent intensity at the buoy was 0.114, which was 8.8% lower than that (0.125) at the lightship. The impact on the wind generator unit at the buoy was lower than that at the lightship. These results indicate that the wind energy at the buoy was richer than that at the Nancao lightship. Thus, the wind energy on the deep oceanic waters of the East China Sea was more than that at the offshore water.