A skin tester includes a base and a working part. The base includes a power supply. The working part includes a port, a connecting module and a driving module. The port is electrically connected to the power supply. The port is for connecting with a socket. The connecting module is disposed on the base. The driving module is electrically connected to the power supply. The driving module is for rotating by the power from the power supply to drive the connecting module.一種膚質檢測裝置及系統,其中膚質檢測裝置包含座部和工作部。座部包含有電源供應模組。工作部包含有連接埠、轉接模組和動力模組。連接埠與電源供應模組電性連接。連接埠適於供一插頭連接。轉接模組設置於座部。動力模組與電源供應模組電性連接。動力模組適於自電源供應模組取得電能以為旋轉並驅動轉接模組。S‧‧‧膚質檢測系統1‧‧‧膚質檢測裝置130‧‧‧電源供應模組140‧‧‧無線充電模組150‧‧‧第一訊號傳輸單元220‧‧‧光學檢測模組2‧‧‧外部電子裝置21‧‧‧第二訊號傳輸單元22‧‧‧運算單元23‧‧‧顯示器
