A method of manufacturing dried platelet powder comprises adding 0.1mM to 10mM adenosine diphosphate solution in platelet-rich plasma of a mammal animal and mixing well so as to protect platelet, in which the amount of adenosine diphosphate is 0.04nmol to 4nmol with respect to a million platelet cells in the platelet-rich plasma removing a plasma layer from the protected platelet-rich plasma so as to obtain protected platelet layer and freezing the protected platelet layer to an appropriate temperature and drying the protected platelet layer so as to form platelet powder.一種血小板乾粉的製造方法,其包括:在哺乳類動物血小板濃厚血漿中加入0.1至10 mM的二磷酸腺苷溶液,並攪拌均勻,以保護血小板,其中該二磷酸腺苷用量,以血小板濃厚血漿中每100萬個血小板細胞計,使用0.04至4奈莫爾的二磷酸腺苷;將經該保護的血小板濃厚血漿去除血漿層,得經保護的血小板層;及將該經保護的血小板層冷凍至適當低溫後,冷凍乾燥,使其形成血小板乾粉。
