The composite material is characterized to evaluate its mechanical, thermal, and morphological properties. Mechanical tests assess its strength, stiffness, and toughness through tensile, flexural, and impact tests. Thermal analysis techniques like DSC and TGA study its thermal behaviour and stability. Morphological characterization using SEM examines the dispersion and interfacial bonding of banana fibers, nano SiO2 particles, and the polymer matrix. Results show that incorporating these components significantly enhances the composite's mechanical properties, including tensile strength, flexural strength, and impact resistance. The composite also exhibits improved thermal stability, making it suitable for high-temperature applications. Morphological analysis reveals good fiber-matrix adhesion and uniform nanoparticle dispersion in the polymer matrix.