Abstract: To explore the effects of short-video use on restrained eating and its mediating mechanism in female college students from the perspective of the theory of planned behavior (TPB), a sample of 345 female college students in Henan province who had been use short-videos for more than three months were surveyed with the Short-video Use Intensity Scale, the TPB Questionnaire and the Dutch Eating Behavior Questionnaire. Correlation analysis showed that short-video use, behavioral attitude, subjective norm, perceived behavioral control and restrictive eating were significantly and positively correlated with each another. Multiple mediation modeling indicated that short-video use could not directly affect restrained eating, but could indirectly affect it through the parallel mediating roles of behavioral attitude and perceived behavioral control. It suggests TPB can be used to explain the relationship between short-video use and restrained eating of female college students, and behavioral attitude and perceived behavioral control play as complete mediating roles between them. Therefore, decreasing short-video use intensity to change behavioral attitude and perceived behavioral control is an important strategy to interfere with restrained eating of female college students.