In textile industry, production and consumption of textiles produce huge amount of waste every year, rendering its main conclusion that it is one of the most polluting industry. To counter the problem, reinforcing waste textile fiber with polymeric materials is one of the measures for reducing textile industry’s negative contribution towards environment. In the current work, waste textile fiber reinforced polypropylene composites were prepared using hot press machine at different fiber loading (10, 20 and 30 wt%). Mechanical properties of such composites were investigated by tensile, flexural, impact and hardness tests. Generally, their mechanical properties showed a decreasing trend except impact strength that followed increasing trend. Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Thermo Gravimetric Analysis (TGA) were also carried out for the characterization of the composites. The FTIR analysis of the composites showed increase of fiber content. Tensile fracture surface morphology and thermal stability of the composites were examined by SEM and TGA analysis respectively.