Abstarct: Calculating the mean square charge's radius of the proton and neutron is one of the most important topics in nuclear physics. In this study, by using the deep inelastic scattering data of electron that has been gained in Stanford Linear Accelerator Center (SLAC), we plotted proton and deuteron's structure function. Afterward, by applying EMC effects to structure function of the deuteron, the neutron structure function is calculated as well. .......