A system for determining occurrence time of sleep stage based on history of physiology data and a method thereof are provided. By reading pre-saved physiology data in accordance with characteristics of measured physiology data, calculating a statistics data using characteristics of pre-saved physiology data, and determining occurrence time of each sleep stage based on statistics data when a subject sleeping, the system and the method can determine sleep stage accurately, and can achieve the effect of determining what sleep stage is on specific time.一種依據歷史資料判斷睡眠階段之系統及其方法,其透過所測得之受測生理資料的特徵讀取預先建立的歷史生理資料後,先依據被讀出之歷史生理資料的特徵計算相對應的統計資料,再依據統計資料判斷受測者於當次睡眠之各睡眠階段的可能時間之技術手段,可以較準確的判斷睡眠時的睡眠階段,並達成預測特定時間之睡眠階段的技術功效。步驟301 提供受測者於先前睡眠時所測得之歷史生理資料步驟310 讀取受測者於睡眠當下所測得之受測生理資料步驟350 依據受測生理資料之特徵讀取歷史生理資料步驟360 依據被讀出之歷史生理資料之特徵計算相對應之統計資料步驟370 依據統計資料判斷受測者於當次睡眠之各睡眠階段之可能時間步驟390 判斷是否結束預測睡眠階段
