A physiological signal correction device, a correction method, and a wearable device with a correction function for the physiological signal are provided. The physiological signal correction device includes a physiological signal sensor, a warping sensor and a signal processing device. The physiological signal sensor is attached to an object to be measured to obtain a physiological signal value from a sensing electrode. The warping sensor is disposed on the physiological signal sensor, and detects whether a warping condition of the physiological signal sensor with respect to the object to be measured occurs. The signal processing device corrects the physiological signal value provided by the physiological signal sensor according to the warping condition provided by the warping sensor. The warping situation is occurred by a distance between a part of the sensing electrode and the object to be measured or a change of a contact area between a part of the sensing electrode and the object to be measured.一種生理訊號校正裝置、校正方法及具校正功能的穿戴式裝置。生理訊號校正裝置包括生理訊號感測器、翹曲感測器及訊號處理裝置。生理訊號感測器貼附於待測物以從感測電極獲得生理訊號值。翹曲感測器配置於生理訊號感測器，其偵測是否發生生理訊號感測器相對於待測物的翹曲情形。訊號處理裝置依據翹曲感測器提供的翹曲情形來校正由生理訊號感測器提供的生理訊號值。所述翹曲情形是由部分的感測電極與待測物之間的距離或是由部分的感測電極與待測物之間的接觸面積發生變化而產生。
