A tooth brushing motion sensing module is disclosed. The tooth brushing motion sensing module comprises a motion detector and a display. The motion detector detects the tooth brushing motion of a user and transmits a motion signal to the display. The display visualizes the tooth brushing motion and guides the tooth brushing motion for the user by playing a video or an audio. The motion detector connects to the first magnetic unit of the display detachably by a second magnetic unit. The motion detector transmits the motion signal to the display through a wireless radio frequency antenna, and the display receives the motion signal by a wireless radio frequency receiver.本創作揭露一種刷牙動作感測模組,包含一動作感測器與一顯示裝置,動作感測器感測使用者之刷牙動作,並將一動作感測訊號傳輸至顯示裝置進行視覺與聽覺的刷牙引導,其中動作感測器藉由第二磁吸附元件可拆地連接顯示裝置之第一磁吸附元件,且動作感測器藉由無線射頻天線將動作感測訊號傳送至顯示裝置,顯示裝置藉由無線射頻接收器接收此動作感測訊號。100‧‧‧顯示裝置101‧‧‧電源102‧‧‧第一電路板103‧‧‧供電模組104‧‧‧第一磁吸附元件105‧‧‧微控制器1051‧‧‧運算模組1052‧‧‧比對模組1053‧‧‧刷牙模型儲存媒體106‧‧‧無線射頻接收器107‧‧‧顯示螢幕108‧‧‧發光元件109‧‧‧揚聲器
