Egret fishing in Yundang Lake in Xiamen is a globally unique natural ecological phenomenon. Yundang Lake has always been the natural habitat of the little egret, in order to improve the quality of the water in Yundang Lake and maintain a good ecological environment, municipal administrators use seawater tides to carry out the natural circulation of the lake, whenever the inlet of Yundang Lake for the tidal wave, a large group of small fish (or shrimp, the same hereinafter) with the tidal wave from the sea crowded into the mouth of the tidal wave of Yundang Lake, the small fish by the rapids stunned to reduce the vigilance of the lake water, there are often lurking in the lake some of the big fish, they take advantage of the chaos to chase and devour small fish, often panic and jump out of the water, while already paying close attention to the small fish, the egret fishing. They take advantage of the chaos to chase and devour the small fish, the small fish often panic and jump out of the water, and the egrets that have been paying close attention to the movements of the small fish flock quickly swooped down to the small fish, and often can be easily won. The egrets, the big fish and the small fish form an interactive and interesting picture that tells a variety of stories about the area.