A kind of blood bag heating apparatus includes a housing unit, a heating unit and a temperature conditioning unit. The housing unit includes one first and second shell that can be opened entirely and be oppositely arranged together. The heating unit coats the internal valve of what first and second shell, and can generate heat when power supply. The temperature conditioning unit matches the current supply circuit to form a pair of heating unit power supply with an external power supply, and to the carry out temperature detecting of the what heating unit, and controls one proper temperature of temperature what of the heating unit. Wherein, which matches with the heating unit to form one and can be warming up to the accommodating space that the proper temperature Hou is kept the temperature, and blood bag setting what accommodating space is to carry out being heated up to the proper temperature. The utility model effect can maintain always the proper temperature in what with the blood in transfusion procedure, being input into human body.一種血袋加溫裝置包含一殼體單元、一加熱單元,及一溫控單元。該殼體單元包括可開闔地且相對設置在一起的一第一、二殼體。該加熱單元包覆於該第一、二殼體的內殼面,且供電時會發熱。該溫控單元與一外接電源相配合形成一對該加熱單元供電的供電迴路,且對於該加熱單元的進行溫度偵測,並控制該加熱單元的溫度於一適當溫度。其中,該第一、二殼體與該加熱單元相配合形成一能升溫至該適當溫度後進行保溫的容置空間,且該血袋設置於該容置空間以進行加溫至該適當溫度。本新型功效在於以在輸血過程中,輸進人體的血液可一直維持該適當溫度。