This study investigates the synthesis, characterization and properties of polyethylene Glycol/graphene nano powder binary composites (PEG/GNPs). These nanocomposites were prepared by co-precipitation method. Structural, morphological, and mechanical properties of these samples were investigated by X-ray powder diffraction (XRD), Fourier transformation infrared (FTIR), Field Emission Scanning Electron Microscopy (FE-SEM) and Universal testing machine (UTM). XRD confirms the phase analysis and crystallinity of the composite. SEM, FTIR and EDS spectroscopy confirms the microstructure of graphene nano powder, identification of functional group and quantitative analysis for elements, respectively and counter confirms the formation of the composites. SEM gives detailed information about the morphology and part distribution. It shows that with the increasing ratio of GNPs (2wt% to 3wt%), the average thickness becomes reduced from 18.43nm to 14.69nm respectively. Mechanical properties were characterized by universal testing machine (UTM). From a mechanical point of view, there was an excellent balance between a remarkable increase in young’s modulus of 3.99N/mm2 for 2wt% and 24 N/mm2 for 3wt% with a slight reduction in the elongation break i.e., 61.11(%) and 33.84(%) respectively.