 This paper reports the morphological, physical, chemical, mechanical and thermal properties of untreated and chemically treated natural fibers extracted from Phoenix SP plants. The study found that the treated fibers have tiny protrusions on their surface, promoting mechanical interlocking with the matrix. Chemical treatments had a positive impact, and FDIR analysis confirmed the presence of chemical functional groups in the fibers. X-ray diffraction analysis revealed an improvement in crystallinity index values for treated fibers. The acrylic acid-treated fiber exhibited the highest tensile strength and modulus, while thermogravimetric analysis showed that treated fibers have better thermal stability, making them a suitable reinforcement material for polymer matrix composites. This article was authored by G Rajesh Kumar.