We present a general method of supporting nanoparticles by using polymers. As a demonstration, a polystyrene was employed to rigidly support the superparamagnetic FePt nanoparticles and CdS QDs. We successfully fabricated the FePt nanoparticles and CdS QDs rigidly supported in a polystyrene matrix by directly blending the FePt nanoparticles and CdS QDs with the polystyrene at melt state of polystyrene. We characterized them with TEM, XRD, and PL spectrometer.