Methyl tert-butyl ether (MTBE) is recently widely used in the chemical and petrochemical industry as a non-polluting octane booster for gasoline and as an organic solvent. The isobaric or isothermal vapor-liquid equilibria (VLE) were determined directly for MTBE + C-1-C-4 alcohols. The excess enthalpy (H-E) for butane + MTBE or isobutene + MTBE and excess volume (V-E) for MTBE + C-3-C-4 alcohols were also determined. Besides, the infinite dilute activity coefficient, partial molar excess enthalpies and volumes at infinite dilution (gamma(infinity), H-E,H-infinity, V-E.infinity) were calculated from measured data. Each experimental data were correlated with various g(E) models or empirical polynomial.