The present invention relates to a method for manufacturing chicken breast powder and a health food or a diet food containing the same by freezing and drying a raw chicken breast in a vacuum state. According to the present invention, the method for manufacturing chicken breast powder comprises: a stocking step； a blanching step for blanching to sterilize the stocked raw chicken breast and remove fishy smell of chicken, and grease of the stocked raw chicken breast； a pan inputting step for freezing and drying the blanched chicken breast； a rapid freezing step； a drying step； a crushing step for pulverizing a dried substance； a packaging step for sealing and packaging the dried substance； and a releasing step. The present invention has no fishy smell of chicken, and has no additional sterilized minor ingredients.본 발명은 생닭가슴살을 진공동결건조시켜 닭가슴살 분말 및 이를 함유한 건강식품 또는 다이어트 식품을 제조하는 방법에 관한 것이다.
