A signal strength-based medical conference attendance system and method of a medical informatization system, the method comprising: receiving reserved conference room information from a mobile terminal of a medical professional having a reserved conference; establishing a conference room table according to the conference room information; sending a revision command to the mobile terminal of the participating medical professional, causing the mobile terminal of the participating medical professional to establish a notification number; according to a telephone number of the participating medical professional recorded in the conference room table, dialing the mobile terminal of the participating medical professional so as to remind the participating medical professional to attend the conference; within a pre-determined time period after the conference begins, acquiring a signal strength of the mobile terminal of the participating medical professional; updating attendance information in the conference room table according to the signal strength for the participating medical professional.
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