목적: Auricle is an important organ, which determinates the shape of ones face and the shape differs by the sex, age, and ethics. In case of microtia patients, reconstruction will be executed based on the shape of ones opposite ear or ones patients auricle. Draw a normal ear shape by hand or dip like to create a template painting, however, this method is only a two-dimensional data. When using a Temporal bone CT (TBCT) has the disadvantage that the three-dimensional measurement is possible not only to configure the ear in the shape to create a small margin of error. TBCT carries radiation hazard, which needs for an additional imaging process. 방법:We proposed a reliable 3D-printing scanning method, which scans a normal auricle model by using i-Pad. This method is non-invasive, simple drawing, and a cost-effective. Normal 9 patients (=54, 37 11.5 yo, range=28-58 yo) were observed to see whether the method is a clinically useful. The values were measured the margin of error by the target TBCT.iSense 3D scanner was used for 3D scanner on iPad Air. The subjects sat on a chair and receive a constant illumination. The tester conducted scanning by walking 360-degree around the patient. In order to avoid interfering with the scanning of his hair, the patient wore a net, so the only ear can be exposed and scanned. 결과:Auricles distances of Superaural-Subaurale, Concha superior-Most lateral point of auricle, and Concha superior-Intertragic incisor were measured by three-dimensional scanner.59.2 4.60 mm of maximum height, 36.1 5.62 mm of the area, 24.6 4.39 mm of Concha superior-Intertragic incisor were determined. The measured data reported no difference based on the past literature. Moreover, the data showed a significant standard error level from measure of TBCT. 결론:In conclusion, 3D scanner, which attached to iPad revealed availability of rendering objective ear-plastic surgery indicator.