Feng Shui Dragon Cave: China Encyclopedia of Traditional Environmental Geography is a famous Feng Shui scholar in Taiwan Province Province, Mr. Zhang Qingyuan. He spent three years traveling all over the mainland, Hong Kong, Taiwan and Southeast Asia, inspecting environmental geography in various places, and analyzing sand, water, dragons and caves in Feng Shui theory from a macro perspective and scientific laws. Combining the practice of geomantic omen, this paper summarizes new achievements for the scientific research of China's traditional geographical theory. At the same time, in the fog of "science and superstition", I also give suggestions to the majority of feng shui lovers!