There are few hospital meals that provide a special set in response to the patients’ symptoms. Smart Dietitian provides an exclusive diet caring system for inpatients, including smart dining plate and APP AI. Inpatients can easily know what kind of nutrition is needed through the APP, and it is connected to the diet supply system in the hospital. AI can make diet recommendations based on the patient’s symptoms and the doctor’s suggestions. Together with the smart dining plant, patients can intake different portions of foods according to the color distribution on the plate to achieve a healthy diet. Caterers can also use Smart Dietitian to prepare meals for patients in bed in a short time, reducing the medical personnel’s’ stress and improving the quality of medical services.