A kind of blood capture device that this creation provides,It include: a blood source,The blood of centrifugation layering is isolated by human body and had been subjected to provide one； One flow path,System makes the blood source be connected with a first container or a second container； One sensor,System sets on the what flow path,For sensing the variation of the blood in the flow path； One control unit,System and the sensor electrical connection,To receive the sensing result of the sensor,And according to the sensing as a result,Selectively controlling the object container system that the flow path connects is the first container or the second container.本創作所提供之一種血液擷取裝置，包括：一血液源，用以提供一由人體分離出且已經過離心分層的血液；一流路，係使該血液源與一第一容器或一第二容器相連接；一感測器，係設於該流路上，用來感測該流路中的血液之變化；一控制單元，係與該感測器電性連結，用以接收該感測器的感測結果，並依據該感測之結果，選擇性地控制該流路所連接之對象容器係為該第一容器或該第二容器。
