SEA system is the world's first product to diagnose depression with brainwaves. Unlike other diseases can be diagnosed by lab tests (e.g. blood test or X-ray), doctor can only follow guideline to ask questions about patients’ feelings, mood, sleeping habits, and other symptoms to diagnose depression. SEA system can analyze brainwaves and generate assessment report to help doctors provide more accurate diagnosis. It has three advantages as follows: 1) Fast measurement, it only takes 2 mins from capturing brainwaves to generate assessment report. 2) High usability, it only requires 8 channels of EEG data and thus the system setup is very simple. 3) High accuracy, the AI algorithm can achieve above 80% accuracy with clinical data evaluation.