The invention discloses a medical alarm 
system based on a 
mobile phone APP. The medical alarm 
system includes a public version 
mobile phone APP, a 
server, a duty 
workstation, and a doctor version 
mobile phone rescue APP. The mobile phone APP includes a medical alarm module, a 
camera module, a video module, a voice module, and a positioning module. The 
server includes an alarm receiving module, a face recognition module, and a 
patient database module. The 
server is used for receiving and improving 
patient information, including alarm time, alarm location, patient's name, gender, a photo, a short video of the patient, and case history. The duty 
workstation receives medical alarm and 
patient information sent by the server, and dispatches a doctor to visit the patient. The doctor version mobile phone rescue APP is installed in the mobile phone of each rescue doctor, and is used for receiving an out-call instruction and 
patient information, determining the location of the patient and planning a 
route, communicating with the patient online, and reporting the out-call condition. The medical alarm 
system makes it easy for patients to give an alarm, helps doctors to know patients, and ensures that patients get medical help in time.