Measurement of differential elastic cross section of protons from aluminum was taken at 165° degree in the2.4–4.8 Me V energy range. The results and measured energy resonances were compared with reported measurements.These data will improve the reliability of backscattering analysis of Al with protons in this energy region. Measurement of differential elastic cross section of protons from aluminum was taken at 165 ° degree in the 2.4-4.8 Me V energy range. The results and measured energy resonances were compared with the reported measurements. The data will improve the reliability of backscattering analysis of Al with protons in this energy region.