This study will shows the impact factor affecting Thailand canned pineapple in syrup export by using model from the assumption of import demand side following Smith (2004). The data from various source i.e. International Financial Statistic by IMF, World Bank database, Bank of Thailand and Office of the Permanent Secretary Ministry of Commerce of Thailand. The research question intended to examine how the relationship between export of pineapple in syrup, and Gross Domestic Product of Importer countries (GDP), Exchange Rate between baht per currency of importer countries and Number of population of importer countries (POP) could be found. From 4 countries such as United State, Japan, Germany, and Canada as well as Japan has a fastest adjusting from short-run equilibrium to long-run equilibrium by have a value closest to zero; error-correction model is -1.8280. Mostly of export canned pineapple has a negative relationship with variables GDP and population both in long-run and short-run equilibrium, means canned pineapple in syrup is possibly substitution goods for those countries,