A Kalman filtering based inverse techniques is introduced in this paper.This method can estimate wind loads through limited wind-induced responses based on modal conversion technology and expanded system state equa-tions .The accuracy and practicability of the method are verified by the results of the engineering examples in the wind tunnel test.The results show that the time-histories and power spectra of the estimating wind loads coincide the accura-cy ones.Different noise levels have little effect on the estimating wind loads,which is acceptable in engineering prac-tices.%提出了利用卡尔曼滤波反演高层建筑结构风荷载的方法。此方法通过有限结构风致响应基于模态转换技术和扩展的系统状态方程反演结构风荷载。结合风洞试验结果，通过工程实例分析，验证了此方法的准确性和适用性。结果显示反演风荷载时程及功率谱与试验结果均吻合较好，噪声强度对反演风荷载影响较小，满足实际工程需要。
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