A method for sensing a physiological feature is provided. A sensing apparatus is provided for sensing the physiological feature. The sensing apparatus includes a lighting unit, a light sensing unit, and a controller. The lighting unit and a light sensing unit are located on the same side of a portion under test of a tested person. The lighting unit transmits a white light to the portion under test. The light sensing unit senses a reflection light. And the controller executes a measurement operation for the physiological feature based on a color wavelength of the reflection light.一種生理特徵的感測方法。提供感測裝置來感測生理特徵。感測裝置包括發光單元、感光元件以及控制器。發光單元與感光元件位於受測者的待測部位的同一側。發光單元向待測部位發射白光。感光元件感測反射光。並且，控制器基於反射光的顏色波長，來執行生理特徵的測量動作。
