Mental state detection system based on electroencephalogram analysis

The invention discloses a mental state detection system based on electroencephalogram analysis. The mental state detection system comprises an electroencephalogram signal acquisition module, an electroencephalogram signal preprocessing module, an analysis module, a data fusion evaluation module, a data conversion module, a three-dimensional generation module, a specialist decision making module, a renewing module, a database and a central processing unit. By means of the mental state detection system, evaluation accuracy and time and space adaptability are effectively improved, foundation is laid for further improving the identification accuracy of human mental state evaluation and shortening identification time, brain situations can be shown in front of doctors through the three-dimensional generation module, and therefore the doctors can be personally on the scene to observe and sense the change situations of brains, the identification accuracy is further improved, reference of classic cases is conducted through the specialist decision making module, and the mental state detection system further assists doctors in conducting rapid diagnosis and treatment.