This article Imagery communication psychotherapy and traditional Chinese medicine (TCM) has the same thinking model, and it’s new to apply in assisting TCM diagnosis. A total of 98 patients with stomach diseases and 31 patients with normal stomach function were selected to obtain stomach images using the Imagery communication psychotherapy observation method. The image contents were encoded; mathematical statistics, and symbolic analysis were conducted. The results showed that there were significant differences in the non-living objects of the image type and the stomach functions based on frequency statistics; and there are significant differences in the positive and negative symbolic meanings of image types. There are differences among three types of stomach diseases: stomach yang deficiency, stomach qi deficiency, and liver stomach disharmony. It can be concluded that it is feasible to use Imagery communication psychotherapy to assist the diagnosis of stomach diseases in TCM.