The present invention relates to a wearable electrocardiogram detector which comprises a first electrode and a second electrode, wherein the first electrode is disposed on a user via a wearable structure, and the second electrode is in contact with the skin of upper limb, neck portion or shoulder, so as to realize an electrocardiogram signal capturing loop for performing electrocardiogram signal acquisition.本創作關於一種穿戴式心電檢測裝置。該裝置包括一第一電極以及一第二電極,其中,至少該第一電極是透過一穿戴結構而設置於使用者身上,且該第二電極會接觸上肢、頸部、或肩膀的皮膚,以達成一心電訊號擷取迴路,並進行心電訊號擷取。