This paper reviews the characterization and properties of natural fiber polymer composites, highlighting their environmental benefits and potential as eco-friendly alternatives to synthetic materials. The authors discuss various fabrication techniques used to produce these composites and provide a detailed analysis of their structure and properties through different characterization methods such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The review underscores the advantages of natural fiber composites, including low cost, improved mechanical properties, and reduced energy consumption in production, making them a promising solution for sustainable construction practices.This paper reviews the characterization and properties of natural fiber polymer composites, highlighting their environmental benefits and potential as eco-friendly alternatives to synthetic materials. The authors discuss various fabrication techniques used to produce these composites and provide a detailed analysis of their structure and properties through different characterization methods such as X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The review underscores the advantages of natural fiber composites, including low cost, improved mechanical properties, and reduced energy consumption in production, making them a promising solution for sustainable construction practices.