In this study, atmospheric pressure plasma (APP) treatment was applied to polypropylene (PP) fabric with non-polymerizing gases, such as air, argon, and nitrogen. Properties of the APP-treated samples including low-stress mechanical behavior, air permeability, water vapor permeability, and thermal characteristics were evaluated. Tensile and friction coefficient of the specimens were also measured. The changes in these properties are believed to be closely related to the inter-fiber and inter-yarn frictional force induced by the APP. The decrease in the air permeability of the APP-treated PP fabric was probably because of the plasma action effect on change in fabric surface morphology, which was confirmed by scanning electron microscopy micrographs. The change in the thermal properties of the APP-treated PP fabric was in good agreement with the earlier findings and can be attributed to the amount of air trapped between the yarns and fibers. This study suggests that the APP treatment can influence the final properties of the PP fabric, and also provides information for developing APP-treated PP fabric for industrial use.