An eye detection method for detecting a degree of eye opening and closure includes detecting a location of an eye pupil center, a location of an inner eye corner and a location of an outer eye corner of an eye of a testee； calculating an eye width according to the location of the inner eye corner and the location of the outer eye corner； multiplying the eye width by a specific ratio to obtain an eye height； generating a region of interest with a center on the location of the eye pupil center, a length equal to the eye width, and a width equal to the eye height； and determining a ratio of the eye occupying a detection area within the region of interest and determining the degree of eye opening and closure accordingly.一種人眼偵測方法，用來偵測一受測者的一眼睛的開闔程度，該人眼偵測方法包含有偵測該眼睛的一瞳孔的位置、一內眼角的位置及一外眼角的位置；根據該內眼角的位置及該外眼角的位置，計算一眼寬；將該眼寬乘上一特定比例，以取得一眼高；以該瞳孔的位置為中心，該眼寬為長度，該眼高為寬度，形成一重點區域；以及在該重點區域的一偵測區間內，判斷該眼睛佔據該偵測區間的一比例，並據以判斷該受測者的該眼睛的開闔程度。
