The present invention relates to a method for multi-medical department selection and post-monitoring during telemedicine based on patient-generated health data (PGHD) and DNA analysis data. The present invention comprises steps in which: a user terminal executes a dedicated application, a cloud server performs user authentication on the basis of personal information received from the user terminal if a telemedicine service is requested from the cloud server, and the cloud server requests the telemedicine service from a hospital server if user authentication is completed; the hospital server sets the telemedicine service, and transmits a setting completion message to the cloud server if the setting is completed, and the cloud server transmits a telemedicine service approval message to the user terminal; the user terminal collects health measurement data including patient-generated health data (PGHD), DNA analysis data about a patient, and preliminary/inquiry medical examination questionnaire data, and transmits the collected heath measurement data to the cloud server; and the cloud server analyzes the received health measurement data.