Abstract: The full life cycle assessment of wind resources is used to forecast and analyze the future operating wind resources, and the forecast wind speed is obtained. The annual generating capacity is concluded based on the above data, and more accurate project’s economic benefit assessment can be obtained. The sensitivity of the wind resources is analyzed. The measured annual wind speed is used as the base data. Based on the 20% range of the sensitivity analysis, the economic benefit of each year is concluded. According to the theory of the full life cycle assessment of wind resources, it is suggested that the electricity price of wind power need to be increased in order to make the project profitable.