The invention discloses a skin parameter measurement circuit and method, wherein the skin parameter measurement circuit comprises a moisture detection module, a skin image detection camera module, a microcontroller for data processing and a wireless module for wireless data transmission; the skin capacitive resistance is measured through the moisture detection module, and according to the relationship between the skin capacitive resistance and the skin moisture, the skin moisture is detected; skin image data is obtained through the skin image detection camera module and the image is analyzed to obtain parameters such as skin oil, whiteness, roughness, coarseness of the pores and the degree of pigmentation; data can be transmitted to devices such as cell phones through the wireless data transmission wireless module. The invention has the advantages that the parameters such as skin moisture, oiliness, whiteness, roughness, coarseness of the pores and pigmentation degree can be measured, and the circuit is simple and the parameter measurement is easy to realize; the device is easy to carry, simple to operate, and is low in cost, bringing great convenience for the general consumers for skin detection.