The present invention proposes a sterilizing device suitable for a sterilized article, comprising a casing and a sterilizing unit. The housing comprises a bottom wall, a peripheral wall extending upward from the bottom wall, and a peripheral wall connected to the bottom wall and the peripheral wall to form an accommodation space upper cover module. The upper cover module has a penetrating layer. The sterilizing unit is disposed in the accommodating space, and the sterilizing unit generates electromagnetic waves to be emitted through the penetrating layer of the upper cover module to act on the object to be sterilized.本創作提出一種殺菌裝置,適用於一待殺菌物品,包含一殼體及一殺菌單元。該殼體包括一底壁、一由該底壁向上延伸之周壁,及一與該周壁相連接,並與該底壁、該周壁共同形成一容置空間之上蓋模組。該上蓋模組具有一穿透層。該殺菌單元,設置於該容置空間,該殺菌單元產生電磁波經由該上蓋模組之穿透層射出,對該待殺菌物品作用。