The invention discloses an anti-aging hydrolysis-resisting halogen-free flame retardant polycarbonate compound which comprises the following components in parts by weight: 50-85 parts of PC resin, 5-23 parts of PET resin, 0.01-5 parts of a compatilizer, 0.1-13 parts of a flexibilizer, 8-20 parts of a phosphorus-containing halogen-free flame retardant, 0.01-2.0 parts of an antioxidant and 0.01-0.8 part of other additives, wherein the phosphorus-containing halogen-free flame retardant is a phosphonitrile flame retardant. The phosphonitrile flame retardant high in nitrogen and phosphorus content is used by the anti-aging hydrolysis-resisting halogen-free flame retardant polycarbonate compound prepared according to the invention. The phosphonitrile flame retardant contains no water-sensitive phosphate group, is capable of extremely reducing the influence on the mechanical property and flame retardant property of the polycarbonate compound after the sunlight or rainwater corrosion, is suitable for outdoor occasion and especially is suitable for the occasion with higher requirement on use environment.