A fixing device is provided. The fixing device is used for fixing a medical apparatus on the finger, and the fixing device comprises a support portion, a first fixing member and a second fixing member. Therefore, the effect of comfort and stability for monitoring physiological parameters is achieved.本創作相關於一種醫療器材固定裝置，該固定裝置具有支持部、第一固定件及第二固定件，用以固定醫療器材於手指，藉此達到舒適及穩定監測生理參數的目的。
