Jiao Xun is one of the most important scholars of Yijing learning in the Mid-Qing Dynasty. In academic community, one of the study of Jiao Xun's Yijing learning is greater emphasis on Mathematical principles. It lay heavy stress on Pangtong (Cinterchange of the lines of hexagrams), Xiangcuo, and Shixing. Another study is emphasis on Yijing is a book that the sage teaches people how to correct our mistakes. In academic community, it's lack of attention to Jiao Xun how to use the theory of Guabian to develop philosophy of Yijing. Jiao Xun make a rigorous system of Guabian, and the system thread all Guayaoci and Guahua together, and make the Divinatory Symbols and Yici combined together. Besides, there are many forefathers who discuss Ganyuan and Taiji of Yizhuan by cosmology. They stick to the general rule of Jingzhuan, and make explanations of words in ancient books. Even they try to explain the goodness of human nature and constancy-expediency thought, but it's closely related to Jingzhuan. Jiao Xun's study of Yijing don't abolish the arguments of confucians in the Han Dynasty, and it's also different about Hui Dong and Zhang Huiyan's study of Yijing. In the Mid-Qing Dynasty and the phylogeny of Yijing, Jiao Xun's studies stands apart by himself.