This study examines Thailands domestic and export market situation with regard to rubber smoked sheet no.3 (RSS3). Time series analysis is used to estimate trends in order to forecast the export of RSS3 during January 2557 – December 2561 using monthly data from 2542 – 2556. The results show that export volume of RSS3 is likely to increase every year in the same month. The volume of exports in December in every year is the most abundant. However as the volume of product increases every year the rubber price keeps falling. As a result farmers and entrepreneurs would benefit from government expansion of the market by the establishment of a domestic industry as an alternative support for output rather than sole reliance on export.