The invention discloses a polycarbonate composite material, which is prepared from the following components in terms of parts by weight: 30 to 80 parts of polycarbonate, 5 to 40 parts of ABS (Acrylonitrile-butadiene-styrene) and 5 to 80 parts of fillers, wherein on the basis of the total weight of the polycarbonate composite material, the weight content of iron element is 0.1 to 50 ppm. Discovered in surprise, an elementary ferrous substance or an iron-containing compound with a lower content of soluble iron is added into the composite material, and the addition of other iron-containing compounds into the composite material is reduced or avoided, so that the prepared polycarbonate composite material has the advantages of improved bending modulus, improved impact strength, excellent molding use stability and excellent color stability.