100-channel gel filling machine of vacuum blood collection tube (1)fill separation gel via vacuum negative pressure suction, and the gel filling volume can be adjusted via time control. (2)adopt man-machine interface control, easy to operate, and the gel filling time and vacuum degree can be set flexibly. (3)be equipped with automatic feeding system, with no need for manual feeding. (4)it is equipped with constant temperature control system, so as to ensure the gel filling efficiency at low temperature.