The utility model discloses a hemostix suitable for CAR T gathers blood sampling relates to the medical supplies field, provides a blood collection and the convenient hemostix that just can save blood of discharging. This hemostix includes blood collecting bottle and blood taking needle, be provided with anticoagulant in the blood collecting bottle, the volume of blood collecting bottle is greater than 50ml, is provided with the volumetric scale of sign on the blood collecting bottle, and the inside atmospheric pressure of blood collecting bottle is the negative pressure, is connected with the blood sampling joint on the blood collecting bottle and arranges blood to connect, the blood sampling connects the heparin cap I that connects the main part including joint main part and the shutoff blood sampling of taking a blood sample, and the surface of blood sampling joint main part is provided with the external screw thread, it connects including arranging the heparin cap II that blood joint main part, adjusting collar, row's blood vessel and shutoff row blood connect the main part to arrange blood, be provided with the air vent in row's blood joint main part, adjusting collar and row's blood joint main part threaded connection and internal connection have the sealing washer of stifled air vent, it connects the bottom that the blood collecting bottle is connected and extends to to the main part to arrange the blood vessel and arrange blood, the blood taking needle includes the connector that connects the adaptation with the blood sampling.