A method and an apparatus for detecting blink are provided. After obtaining an eye image sequence of a user, a currently analyzed image and a previously captured image are obtained from the eye image sequence and a reflective regions of the currently analyzed image and the previously captured image are filtered, wherein the brightness values of pixels included in the reflective regions are higher than a brightness threshold. Difference pixel amount between the currently analyzed image and the previously captured image is calculated so as to determine whether the user blinks according to the difference pixel amount.一種眨眼偵測方法及裝置。在獲得使用者的眼部影像序列之後，自眼部影像序列中取出目前分析影像與先前擷取影像，並且濾除目前分析影像與先前擷取影像中的反光區域，其中反光區域的像素之亮度值高於亮度門檻值。計算目前分析影像與先前擷取影像之間的差異像素數量，藉以根據差異像素數量，判斷使用者是否眨眼。
