Abstract: Objective To investigate the facial aesthetic perception changes of patients who received orthodontic treatment, in order to instruct orthodontic treatment to improve satisfaction. Methods A panel of 100 orthodontic patients from Shandong University Stomatology Hospital evaluated sets of four post-treatment standardized photographs (one frontal, one frontal smiling, one lateral and one frontal occlusal ) of 12 orthodontic patients, in relation to the pre-treatment sets of the same patient, on a five-point scale before their orthodontic treatment and after one year and a half. Results were statistically analyzed. Results The facial aesthetic perception of patients who received orthodontic treatment improved significantly. Among the patients, the facial aesthetic perception of the middle-aged female patients with a higher level of education improved most significantly while the lower-educated young male patients’ facial aesthetic perception did not improve significantly. Both extraction and non-extraction patients' facial aesthetic perception have improved, but there was no significant difference. Conclusions The patient's aesthetic perception will improve with the going on of orthodontic treatment. We should pay attention to the changes in patient's aesthetic psychology and behavior in orthodontic treatment, adjust the treatment program timely and accordingly, and to enhance communication with patients to improve patients’ satisfaction.