The spleen and the stomach are mutually exclusive, with the spleen as the organ and the stomach as the internal organs, and the relationship is characterized by the three aspects of mutual success in absorption and transportation, elevation and elevation, and dryness and dampness. 1. Nana and transportation: the stomach is the main receptor, putrefaction, able to carry out the initial digestion of food; the spleen is the main transportation, able to digest the essence of water and grain (equivalent to the small nutrients in the food and water) transmitted to the whole body. 2. Lifting and lowering: The spleen and stomach are located in the middle jiao of the human body and are the core of qi lifting and lowering. Spleen qi is the main ascending, can be transported upward to the heart and lungs, and then transmitted to the whole body; stomach qi is the main descending, can be transported downward to the intestines, into the dregs of the food, and finally discharged out of the body. 3. Dryness and wetness: the spleen for the Yin (spleen in the yin and yang attributes belong to the Yin), like dry and evil wet (spleen like dry and loathe moisture); stomach for the Yang (stomach in the yin and yang attributes belong to the Yang), soft and dry and evil dry (like wet and loathe dry), the two interact with each other, and coordinate each other. The relationship between the two is inseparable.