Fabricated artificial opal templates, Low pressure metal-organic chemical-vapour deposition has been used to infill the voids within opals and optimized the growth parameters. Scanning electron microsocopy images and reflection spectra ruselts show that the InP is very homogeneously distributed inside the opals, with high crystalline quality;the photonic band gap is shifted to higher wavelength as a result of the high contrast of dielectric constants when InP is introduced, which is in agreement with theoretical calculations.