A smart toothbrush-based tooth-brushing evaluation method, device, terminal device and storage medium. The evaluation method comprises: acquiring in real time brushing data detected by a data detecting device in a smart toothbrush； analyzing the brushing data, and statistically obtaining for each brushing surface the brushing time, the frequency of high-amplitude brushing which has a brushing amplitude greater than a first threshold, the number of instances of large-force brushing where the brushing force is greater than a second threshold value and the number of instances of horizontal brushing； according to the brushing time, the high-amplitude brushing frequency, the number of instances of large-force brushing and the number of instances of horizontal brushing for each brushing surface, determining among all brushing surfaces the number of surfaces where brushing exceeds a time limit and the brushing time is greater than the standard brushing time, the number of high-amplitude brushing surfaces, the number of large-force brushing surfaces and the number of horizontal brushing surfaces； and obtaining a brushing evaluation result according to the brushing time, the number of surfaces where brushing exceeds a time limit, the number of high-amplitude brushing surfaces, the number of large-force brushing surfaces and the number of horizontal brushing surfaces, so as to obtain a comprehensive and accurate brushing evaluation result and help a user to improve brushing motions.La présente invention concerne un procédé d'évaluation du brossage des dents basé sur une brosse à dents intelligente, un dispositif, un dispositif terminal et un milieu de stockage. Le procédé d'évaluation comprend : l'acquisition de données de brossage en temps réel détectées par un dispositif de détection de données dans une brosse à dents intelligente ； l'analyse des données de brossage, et l'obtention statistiquement pour chaque surface de brossage du temps de brossage, de la fréquence de bros
