This manuscript deals with the sliding wear behaviour of bio-char reinforced epoxy composites. The bio-char filler materials have been prepared from biowaste orange peel particulates (OPP) using controlled or oxygen-free at 800 °C. A set of experiments has been carried out to study the wear behaviour of bio-char/carbon black reinforced composite specimens by pin-on-disc tribometer under various working conditions, such as applied load and sliding velocity as per ASTM standard. The different weight percentage of bio-char filler elements has been integrated into the epoxy to improve the wear behaviour of the composite material. Out of which, 20-weight percentage bio-char reinforced composite materials has given better performance. The wear resistance of CB8 composites, (treated at carbonization temperature 800 ºC) under operating conditions 20N load and sliding velocity 2.1 m/s, is 21% higher than unreinforced composites. With increased applied load and sliding velocity, the wear severity has increased from abrasion to delamination. The effect of carbonization temperature has been clearly observed in the wear analysis as the material removal rate of the developed composites decreases with the inclusion of bio-char filler material. The SEM was used to analyse the micro-structure of the worn surfaces of the tested specimens to understand better the wear mechanisms. The CB particles were subjected to EDX analysis, XRD and SEM for characterization purposes.