As subjects in drug clinical trials and participants in medical practice, patients can best understand their own conditions and needs. With this in mind, the FDA proposed "patient-centered drug discovery" and issued a set of guidelines to incorporate patient experiences, perspectives, needs, and preferences into the drug development and evaluation process. Guideline (2), methods for identifying important patient information, mainly describes methods and precautions for collecting and extracting patient experience data. This paper will focus on the characteristics, common methods and precautions of qualitative, quantitative and mixed research methods in the collection of patient experience data, in order to provide help for the comprehensive collection of patient experience data.