The purpose of this study was to examine the characteristic of the 3-dimensional scan method in measuring body surface area (BSA). The BSA difference between 3D scan method and direct method was checked by mannequins of Korean women. We used paper coating as a direct method, and in 3D scan method we used WB4 scanner. As a result of experiment with geometrical forms, repeatability was better in direct method with the simple geometry, but with more complex geometry, it was better in 3D scan method. The accuracy was better in 3D scan method than direct method at both geometrical forms. The comparison between BSA of two methods by body segments showed that there was large difference in hand, feet, and front bodice which had complex structure or was hidden from the scan. We also examined the change of surface area by editing the 3D scan data. The body parts enhanced highly by editing was foot, head and upper arm, and the BSA of the 3D scan data was close to that of direct method after editing. Difference of whole BSA between 3D scan and direct method was within 2%. So we suggest that 3D Scan method can be used in measurement of BSA.