Skin moisture detecting method and terminal device

The invention provides a skin moisture detecting method and a terminal device. The skin moisture detecting method comprises the steps that the terminal device determines that a capacitance value between a first measurement electrode and a second measurement electrode as a first capacitance value when the skin of a user covers the first measurement electrode and the second measurement electrode simultaneously, wherein the first measurement electrode is composed of P sensing units in N sensing units included in a capacitive fingerprint detection device of the terminal device, the N is a positive integer greater than or equal to 2, and the P is a positive integer greater than or equal to 1; the terminal device determines that the skin moisture of the user according to the correspondence relation of the capacitance value and the skin moisture and the first capacitance value. Based on the technical scheme, the terminal device can utilize an existing capacitive fingerprint detection device to achieve skin moisture