Angular distributions of 3 He elastic scattering reactions from stable Selenium isotopes have systematically calculated within the theoretical framework. Optical-model parameters for Woods-Saxon real and imaginary volume potentials have been used to illustrate the data. The corresponding ratios to Rutherford scattering and relevant barrier distributions of elastic scattering cross-sections have attained from 0⁰ to 180⁰. The theoretical calculations shed light on a well-rounded definition of the empricial angular distribution data.