In doctor-patient interaction, the patient-centered communication focuses on patient care and patient participation in treatment decision-making. There is a huge information asymmetry between doctors and patients with different backgrounds of knowledge and experience. The quantity and quality of disease information and treatment information are related to the communication satisfaction. Different doctor-patient communication patterns should be chosen according to different diseases. In addition, the symmetry of risk information also affects the patients' treatment satisfaction. Future researches are needed from the perspectives of doctor-patient information matching, patient information cognitive psychological mechanism and communication promotion technology.