A portable system for monitoring physiological information and method for monitoring physiological status of a user are provided. The system includes a first sensing unit, a second sensing unit, a processing unit and an alarm unit. The first sensing unit and the second sensing unit are used for sensing a first physiological information and a second physiological information, respectively. The processing unit, respectively connected to the sensing units and the alarm unit with signal, is used for receiving and carrying out a synchronization judgment for the first and second physiological information. When the first and the second physiological information are judged to be in an unsynchronized state, the alarm unit receives a warning parameter generated from the processing unit, so as to send out a warning signal to alert the user.本發明提供一種隨身型生理資訊監控系統及生理狀態監控方法。隨身型生理資訊監控系統包括第一量測單元、第二量測單元、處理單元與警示單元。第一量測單元與第二量測單元分別用以測量使用者之第一生理資訊與第二生理資訊。處理單元信號連接於上述量測單元與警示單元。處理單元用以接收上述生理資訊並進行同步性判斷,當判斷出第一生理資訊與第二生理資訊處於不同步狀態時,則產生警示參數予警示單元,並發出警示訊號以警示使用者。200‧‧‧生理狀態監控方法210、220、230‧‧‧步驟