The invention discloses a 
senile dementia monitoring system based on a 
mobile internet. The 
senile dementia monitoring system based on the 
mobile internet comprises an intelligent terminal, a 
cloud server and a brain electrical monitoring device, wherein the electrical 
brain monitoring device is used for acquiring brain electrical information of 
senile dementia patients or healthy people in real time, and sending the brain electrical information to the intelligent terminal; the intelligent terminal is used for receiving the brain electrical information, completing cognitive-psychological assessment, inputting clinic information, and uploading the brain electrical information, the cognitive-psychological assessment and the clinic information to the 
cloud server through the 
mobile internet; the 
cloud server is used for receiving MRI (
Magnetic Resonance Imaging) image information uploaded by hospitals and information uploaded by the intelligent terminal so as to complete auxiliary diagnosis and generate corresponding 
nursing instruction suggestions, and then feeding auxiliary diagnosis results and the 
nursing instruction suggestions back to the intelligent terminal. According to the senile 
dementia monitoring system based on the mobile internet, the mobile internet technology is utilized, the automatic auxiliary diagnosis of senile 
dementia can be realized, the accuracy of the diagnosis is improved, and the prevention and the 
early detection of the senile 
dementia can be realized favorably.