The present invention relates to a method for preparing brown rice tea using gaba rice, and provides brown rice tea using high-quality and high-functionality gaba rice, capable of having a good taste and containing an abundance of various nutrients to promote health, by giving the minerals extracted from natural stone minerals in the procedure in the gaba rice having high contents of dietary fibers and gamma aminobutyric acid is soaked. The method for preparing brown rice tea using gaba rice of the present invention comprises: a grain material preparing step (S10) for mixing 45-55 t% of brown gaba rice and 45-55 wt% of nonglutinous rice to prepare grain materials a sterilizing and washing step (S20) for putting the grain materials, in which the gaba rice is mixed with the glutinous rice, in an ozone washer, and performing sterilizing and washing by giving ultrasonic vibration while blowing ozone gas and the air, which is generated by a bubble generator, into a washing tank a soaking step (S30) for immersing the grain materials, which have been washed in the sterilizing and washing step (S20), in water, mixing the water with a mineral solution extracted from natural stone minerals, and soaking the grain materials for 5-6 hours a dehydrating step (S40) for dehydrating the grain materials, which have been soaked in the soaking step (S30) a roasting step (S50) for putting the grain materials, which have been dehydrated in the dehydrating step (S40), in a drum type roasting apparatus composed of a cylindrical iron net, and roasting the grain materials for 20-30 minutes by applying the heat from a heater while rotating the iron net and a packaging step (S60) for cooling the grain materials, which have been roasted in the roasting step (S50), followed by packaging.COPYRIGHT KIPO 2016본 발명은 가바쌀을 이용한 현미차의 제조방법에 관한 것으로서, 식이성 섬유 및 감마아미노낙산(Gamma Aminobutyric Acid)의 함유량이 높은 가바쌀을 불리는 과정에서 천연석 광물에서 추출한 미네랄을 부여하여 맛이 좋으면서도 다양한 영양소가 풍부하게 함유되어 건강을 증진시킬 수 있는 고품질,고기능성의 가바쌀 현미차를 제공한다.본 발명