Vapor-liquid equilibria for methanol + ethanol + CaCl2, + NH4I, and + NaI were measured at 298.15 +/- 0.05 K using a static method. The data obtained in this apparatus were confirmed by comparison with the Literature data of ethanol + water and ethanol + water + CaCl2 and tested for thermodynamic consistency. Any salt used in this work exerted salting-in effect on the methanol + ethanol system, the magnitude of which was CaCl2 > NaI > NH4I. The observed data were correlated by use of Hala’s equation, and beta was determined for each system. The calculated result of each system reproduced experimental data within an accuracy of +/-2.12% in vapor-phase mole fraction. From the results of comparison of beta obtained in this work with the kind of salt additive for methanol + ethanol and ethanol + water systems, it was found that beta depended mainly on the kind of salt but not on the kind of solvent mixture. The application of Hala’s model for an alcohol + alcohol + salt system was confirmed at a temperature of 298.15 K.