A skin moisture testing system comprises a BLUETOOTH MCU control unit, aBLUETOOTH antenna impedance matching unit, a RC integral and diode rectifierunit, asine signal unit, a first contact, a second contact. The present inventionalso provides askin moisture testing method using the skin moisture testing system, the skinmoisturetesting method can test skin moisture value. The skin moisture testing methodof thepresent invention is motivated by a pulse signal, the skin moisture testingmethod caneffectively and accurately test skin moisture value. The skin moisture testingmethodalso matches with a lower powered BLUETOOTH MCU to test user's skin for a longtime,then the tested skin moisture value can be visually displayed on the APP ofthe terminaldevice, the testing data can be made to form a graph.