This paper reports the investigation on the flexural properties of activated carbon filled epoxy composites. The Comparison of the properties between different sources of activated carbon, are illustrated. It has to be disposed safely or used for recovery of valuable materials as agricultural wastes like bamboo stem, coconut shell and Empty Fruit Bunch (EFB). Therefore these wastes have been explored for the preparation of activated carbon and carbon black employing chemical activation by H3PO4 and physical activation, respectively. The effect of pyrolysis and chemical activation on the activated carbon filled epoxy composite properties including mechanical (flexural strength), 5 % percent of carbon filler and Scan Electron Microscope SEM micrograph were analyzed. These determined the interaction between activated carbon filled epoxy composite. This study is to compare the effect of the nature of the different types of fillers on the epoxy composites material properties. The microstructures of the farcture surface was examined using a scanning electron microscope (SEM) were formed during the different preparation stages.