A method for manufacturing platelet dry powder, comprising: obtaining platelet-containing plasma fluid, wherein the plasma fluid has substantially removed red blood cells； disposing an aqueous solution of a calcium ion compound of 0.00001 to 0.03M； and taking a small amount of the plasma fluid in a ratio of 1: 2 The ratio of ~ 1: 200 is added to the aqueous solution of the calcium ion compound and mixed evenly to form a mixed solution； the ratio of 1: 1 to 1:50 is added to the plasma solution and mixed uniformly to form Mixing the plasma liquid； centrifuging the mixed plasma liquid to obtain a wet platelet powder； and drying the wet platelet powder to obtain a dry platelet powder.一種血小板乾粉的製造方法，其包括：取得含血小板的血漿液，其中該血漿液實質上已去除紅血球；配置0.00001~0.03M的鈣離子化合物的水溶液；取少量的該血漿液，以1：2~1：200的比例，加入該鈣離子化合物的水溶液中，並混合均勻，形成混合液；以1：1~1：50的比例，將該混合液加入該血漿液中，並混合均勻，形成混合血漿液；將該混合血漿液離心分離，得到血小板濕粉；及乾燥該血小板濕粉，得到血小板乾粉。
