The invention discloses a blood sample separation centrifuge. The blood sample separation centrifuge comprises a driving device and a plurality of centrifugal supporting arms, mounting bases are arranged at the tail ends of the centrifugal supporting arms, a centrifugal working table is mounted in each mounting base, angles of the centrifugal working tables are controlled through motors and a control system, an injector fixing base is arranged on each centrifugal working table, a plurality of injector placing grooves are formed in each injector fixing base, one end of each injector placing groove is provided with a clamping groove used for clamping an injector, an injector push-pull rod is arranged at the other end of each injector placing groove, strokes of the injector push-pull rods arecontrolled through stepping motors arranged in the injector fixing bases, and the control system used for controlling the strokes of the stepping motors is arranged at one end of each injector fixingbase. The invention further provides a blood sample separation method. According to the blood sample separation centrifuge and the separation method, blood samples and immune cells can be automatically separated, and external pollution and cross infection of the blood samples are avoided.