This Article Explore the Preparation of Aluminium Doped Zinc Oxide Nanoparticles By Biosynthesis Method. It Also Known As Greener Synthesis Method. This Biosynthesis Is Eco Friendly, Chemical Free and Nontoxic. In This Synthesis, Extract of Myrobalan Fruit Is Used. Rich Amount of Ascorbic Acid Is Available In Myrobalan Fruit May Act As Reducing and Capping Agents. It Also Acts As a Good Photo Catalyst. the Structural, Morphological and Optical Characteristics Are Characterized By Xrd, Sem and Uv Visible Spectroscopy. the Xrd Analysis Reveals That the Particle Size Was 53 Nm. the Shape of the Nanoparticles Observed In Wurzite Format. the Maximum Peaks Indexed As 100,002,101,102,110,103 and 200. the Optical Transmittance Spectrum of Azo Nanoparticle Was About 85%. the Sem Image Indicates That the Morphology Has Less Aggmolaration.