A non-halogen flameproof polycarbonate resin composition of the present invention comprises about 100 parts by weight of a polycarbonate resin; and about 0.5 to about 10 parts by weight a phosphorus compound represented by the following Chemical Formula (1) or a combination thereof. The present invention can provide an environmentally friendly polycarbonate resin composition which can have excellent retardancy without releasing hydrogen halide gases during preparation or combustion. wherein R1 and R2 are each independently C1 to C6 alkyl and n is 1 or 2.