This Paper Comprises Of The Investigations On The Infrared And Laser Raman Spectra Of 2,5- diamino-4,6-dihydroxy Pyrimidine. The Infrared Spectra Is Recorded In The Region 200 – 4000 Cm-1 Using KBr Pallet Technique. Laser Raman Spectra is Recorded In The Region 100 – 4000 Cm-1. The Observed Vibrational Frequencies Are Assigned To Different Modes Of Vibrations By Considering C2v Point Group Symmetry. On The Basis Of Magnitude And Relative Intensity Of The Recorded Spectra And Group Symmetry Approach With Analogy To The Similar Molecules.