The measurement of heel pad thickness has never been done by ultrasound in health Koreans. To establish normal standard value of HPT in Koreans, 87 healthy volunteers were examined using 10MHZ high resolutional ultrasound,. As a control, measurements of HPT were done in 46 healthy volunteers on conventional X-ray. RESULTS : 1. In ultrasonic measurement cases, the mean value of right HPT is 15.8$pm$1.0mm and the mean value of left HPT is 15.4$pm$2.0mm. In X-ray measurement cases, the mean value of right HPT is 19.9$pm$2.17mm and the mean value of left HPT is 19.8$pm$2.28mm. 2. Maximu value of HPT Is 20.8mm in ultrasonic measurement cases, 23mm in X-ray measurement cases. 3. The value of HPT is well correlated with weight, height both in ultrasound and in X-ray measurements. Correlation between the value of HPT and age is not evident. There is no significant difference between left and right foot, and male and female. 4. The results can be considered that there is no siginificant differ nce in normal standard value of HPT between Koreans and white, and that upper limit of normal in Koreans in 23mm by conventional X-ray.