The embodiment of the present invention discloses a method and device for establishing a corresponding relationship between an RFID tag and a person and tracking a trajectory. Multiple face images are divided into multiple image groups, and the face images in each image group belong to the same person. According to Acquisition time and location of face images and RFID tags, establish the corresponding relationship between image groups and RFID tags, that is, establish the corresponding relationship between personnel and RFID tags. According to the established corresponding relationship between personnel and RFID tags, the trajectory of the personnel is tracked using the RFID tags corresponding to the personnel, compared to the prior art that only uses the face images collected by the face image acquisition equipment to track the trajectory of personnel The method does not need to collect face images in the whole process, avoiding the influence of equipment and environment. Even in the dark, low-resolution equipment or no face image acquisition equipment, it is possible to track personnel based on RFID tags. Trajectory tracking.