Abstract: Image and Data Thinking Mode is the primitive way of thinking for the ancient people to cognitive the objective world. The Book of Changes embodies its core ideas. As a classic work, The Great Appendix contains a large number of discussions about Image and Data Thinking Mode, such as the model of Divination symbols symbolizing the operation and development of all things in the world, Divination symbols having its own specific connotation of Image and Data Thinking Mode and ideas of Image and Data Thinking Mode in Divination method. Image and Data Thinking Mode of The Book of Changes possess three basic features that are recognizing the objective world with holistic concept, explaining the philosophy with intuitive perception and investigating the universe with a changeable point of view. It shows some characteristics of the “law of mutual infiltration”.