Objectives : Fructus Amomi has been widely used to treat patients with anorexia and dyspepsia induced by moisture or cold. In addition, it is known to have preventive effects on miscarriage. But, this preventive effect of Fructus Amomi has controversial point. For this reason, this study was designed to investigate the preventive effects of Fructus Amomi on miscarriage in the framework of usage. Methods : We investigated the preventive effects of Fructus Amomi on miscarriage in terms of checking frequency in use of Fructus Amomi in Dongeui-bogam. Results : Fructus Amomi was used by 192 times in Dongeuh-bogam. it was used by 36 times in major drug, the others used in complementary drug. 14 remedies were used to treat patients with gynecologic diseases. In these remedies, 7 remedies were related to preventive effects of Fructus Amomi on miscarriage. In thses 7 remedies, 6 were used with samul-tang or Radix Scutellariae and Rizoma Atractylodis Macrocephalae. Conclusions : These results suggest the possibility that preventive effects of Fructus Amomi on miscarriage is not involved in direct efficacy, which was explained with gimi-ron, but in usage of the herbal medicine.