A kind of Medical Device with Arrhythmia Analysis and MEMS is used by one of the users from a specific part of the body to detect a pulse signal and an action signal. The pulse signal is calculated and made a heart spectrum information to calculate and analyze an arrhythmia information, and analyze the action signal and get a deep sleeping cardiac rhythm information, a light sleep cardiac rhythm information, a sport cardiac information or a resting cardiac rhythm information. This device provides the user, family members or health care professionals about the immediate heart condition. An arrhythmia analysis method is also provided.一種具有MEMS及心律分析之醫療裝置,其係用以自一受測者之一身體特定部位偵測一脈波訊號及一動作訊號,將脈波訊號進行頻譜計算且取得一心臟頻譜資訊,以計算及分析一心律資訊,並分析動作訊號且取得一熟睡心律資訊、一淺睡心律資訊、一運動心律資訊或一休息心律資訊,可提供使用者、家屬或專業醫護人員關於受測者之即時心臟狀況。一種具有MEMS及心律分析之醫療裝置的心律之分析方法亦被提供。10‧‧‧具有MEMS及心律分析之醫療裝置11‧‧‧偵測單元12‧‧‧MEMS動作感測單元13‧‧‧運算處理單元14‧‧‧電源單元15‧‧‧第二偵測單元16‧‧‧無線傳輸單元17‧‧‧定位單元18‧‧‧顯示單元19‧‧‧行動儲存單元