高水头大流量的泄水建筑物泄流时产生严重泄流雾化对工程和环境造成污染，是必须考虑的重要问题。介绍了泄流雾化观测的新技术及其原理，包括：用立体摄影测量方法观测雾化流运动扩散的形态范围；用放射性同位素测量典型区域内泄流雾化浓度，并配合以雨量简测量典型范围内泄流雾化降雨强度等。并以漫湾水电站原体观测为实例，介绍了实施方法和效果。 High water head and large discharge of discharge water discharge caused serious discharge fogging on the project and the environment pollution is an important issue that must be considered. The new technology and principle of discharge atomization observation are introduced, including: observing the morphological range of atomization flow diffusion with stereo photography; measuring the discharge atomization concentration in typical area with radioisotope, Discharge flow within a typical range of rainfall intensity. Taking the original observation of Manwan Hydropower Station as an example, the implementation methods and effects are introduced.