The utility model provides a split PDC (polycrystalline diamond compact) guide chambering drilling bit, which has the technical scheme that the split PDC guide chambering drilling bit comprises a drilling bit steel body and a plurality of chambering cutter wings, wherein a center through hole is formed in the drilling bit steel body, a plurality of chambering cutter wing installing grooves are formed in the middle of the drilling bit steel body, and each chambering cutter wing is inserted and arranged in the chambering cutter wing installing grooves and is fixedly by a connecting pin. The split PDC guide chambering drilling bit has the following main advantages that 1, the drilling bit steel body is provided with a guide cone, the guide performance is good, and the chambering track is anastomotic with a guide hole; 2, a paraboloid-shaped chambering cutter wings are adopted, PDCs are adopted as cutters at the crown parts and the gauge protection sections of the chambering cutter wing parts, the drilling efficiency of a drilling bit is high, the stability is good, and the service life is long; 3, the cutter wing and the drilling bit steel body are fixed through rectangular grooves and pin shaft, the cutter wings can be dismounted, damaged cutter wings can be conveniently replaced, or the chambering diameter can be conveniently regulated; 4, water holes are formed in the drilling bit steel body cone surface, flushing liquid reaches the water holes through a center passage of the drilling bit steel body, then, a jet flow is formed through a spray nozzle, the rock debris at the hole bottom is sufficiently cleaned, and the water returns to the ground surface along a water tank for forming positive circulation.