The present invention relates to a dry powder preparation for injection of DCA components. The present invention is the dry powder preparation which has excellent storage stability, has a pH of 8.2 or less, thereby having less injection pain by creating a pH environment closer to the human body when dissolved in water for injection compared to existing injections. In addition, in the dry powder preparation, DCA does not precipitate in water for injection but dissolves well.COPYRIGHT KIPO 2020본 발명은 DCA 성분의 주사용 건조분말제제에 관한 것이다. 본 발명은 건조분말제제로써 저장 안정성이 우수하며, pH 가 8.2 이하이기 때문에 주사용수에 용해했을 때 종래 주사제보다 인체에 가까운 pH 환경을 구성해 주사통증이 덜하며, 주사용수에서 DCA 가 침전되지 않고 잘 용해되는 것이 특징이다.