Abstract: Price formation and fluctuation of agricultural products with different attributes are different. Based on 1965-2013 annual data of banana, orange, rice, wheat, palm oil and soybean oil, this paper analyzed the factors affecting the long-term price formation and fluctuation of agricultural products on the international market by estimating the long-term elasticities and the contributions of these factors to each agricultural product price from 1997-2004 to 2005-2013. Results show that 1) prices of agricultural products on the international market increase with fluctuations; 2) The price of previous period is the main factor affecting current price, each agricultural product’s previous price significantly affect its current price and the impact on fruits is more significant than on grains and vegetable oils; 3) Due to the expansion of demand for grains and vegetable oil caused by increasing oil price, oil price significantly affects the vegetable oil and wheat prices, but not fruit prices; 4) Stock-to-use ratios significantly affect all agricultural products except banana and the impact on grains is more significant than on others; And 5) income and inflation have significant impacts on fruit and grain prices. Facing the increasing prices of agricultural products on the international market, to maintain the domestic prices stable, this paper provides the following suggestions: increasing price increase tolerance appropriately, strengthening the transparency of supply and demand information on domestic agricultural products and enhancing the domestic agricultural product reserves.