The present invention provides a method for preparing a radish water kimchi using salty ingredients, so-called rhus chinensis salt, which has no sodium and is obtained through an extraction and purification process from rhus chinensis. The method for preparing a radish water kimchi comprises the steps of: (a) preserving one or more selected among white radish, cabbage, and mustard leaf which are main ingredients of a radish water kimchi in salt water (b) separating the main ingredients from the salt water and washing the ingredients with water and (c) soaking the main ingredients and minor ingredients in the salt water and ripening the ingredients for a predetermined period of time.COPYRIGHT KIPO 2015본 발명은 붉나무로부터 추출 및 정제 과정 등을 통해 얻어지는 나트륨이 포함되지 않은 짠 성분인 소위 "붉나무 소금"을 이용하여 동치미를 담그는 방법을 제공한다.