An orthodontic bracket assistant device is configured to assist at least one orthodontic bracket in configuring on the patient’s teeth. The orthodontic bracket assistant device includes a main body and at least one cavity. The main body includes a containing space, a first surface and a second surface. The containing space is configured for containing a plurality of teeth of the upper or lower row of the patients. The first surface is located on the outer side of the teeth facing the patients, and the second surface is located on the inner side of the teeth facing the patients. The cavities are located on the first surface and corresponding to the plurality of teeth respectively. The orthodontic brackets are configured on the cavities respectively, and the orthodontic bracket attach to the patient’s teeth when the orthodontic bracket assistant device is set on the patient’s teeth.一種牙齒矯正器輔助裝置,用以輔助至少一矯正器設置於使用者的牙齒。牙齒矯正器輔助裝置包含本體以及至少一凹槽。本體包含容置空間、第一表面及第二表面。容置空間用以容置使用者的上排或下排的複數個牙齒。當牙齒矯正器輔助裝置套設於使用者的牙齒時,第一表面位於面對使用者的牙齒的外側,並且第二表面位於面對使用者的牙齒的內側。凹槽位於本體的第一表面且分別對應使用者的複數個牙齒。矯正器分別設置於凹槽中,並且當牙齒矯正器輔助裝置套設於使用者的牙齒時,矯正器靠附於使用者的牙齒上。