Double-fold blepharoplasty is one of the most common cosmetic procedures performed on Northeast asians. Generally, the majority of People regards that big eye is beautiful, which gives an attractive impression. If the obscure concept of beautiful eye is reconstructed and ideal palpebral fissure width is confirmed, It may be the useful marker of double-fold operation. The aims of this study were to find out which anthropometrical data of beautiful eye by analysis about the ratio of intercanthal distance(medial to lateral canthus), palpebral fissure width and iris diameter. A total of 112 women underwent the examination, their age ranged from 20 to 29 years. Anterior facial picture was taken by digital camera(7.1 megafixels, Cannon PowerShot G6?, Japan) without strove light to prevent the blinking phenomenon. Among 112, 27 women were selected as beautiful eye group, and 27 women were selected as unattractive eye. The captured images were analyzed about the ratio of intercanthal distance, palpebral fissure width and iris diameter by using the computer measurement tool(Adobe photoshop 6.0, USA). We observed that the ideal ratio of intercanthal distance, palpebral fissure width and iris diameter is 0.94 : 2.23 : 1.00. The ratio of intercanthal distance and iris diameter between the attractive eye group and unattractive eye group was significantly different. Also the ratio of palpebral fissure width and diameter of iris between the attractive eye group and unattractive eye group was significantly different. The attractive eye group has more high score of palpebral fissure width/intercanthal distance. We concluded that the attractive eye is build by increasing ratio of intercanthal distance/iris diameter, palpebral fissure width/iris diameter. So the extensive operation is required not only the fold incision but also management levator palpebral muscle, debulking pretarsal tissue and plication of pretarsal skin flap.