The study of solute-solvent interaction of beryllium iodide in lower alchols (methanol, ethanol, propanol) were reported at 303 K. The molecular interactions have been carried out by computing various acoustic parameters (Intermolecular free length (Lf), Isentropic compressibility (bs), Specific acoustic impedance (z), Apparent molal adiabatic compressibility (fK), Relative association and solvation number ('S'n). These parameters have been evaluated by using ultrasonic-velocity, density and viscosity datas. The results are discussed in the light of solute-solvent interaction between the molecules.