Abstract: To solve the problems of the optimal rebate standard ofmanufacturers to sealers and the lowest sales volume corresponding to the standard to stimulate dealers efforts and gainmore profits, a gamemodelbetween the relationship of amanufacturer and its sealerswas set up and analyzed. The research shows that the optimal rebate of amanufacturer to its sealers fallswith the increase of rival dealers productprice, and that the lowestsales volume demanded by the optimal rebate increaseswith the increases of total socialdemand for a productand productprice given by a rivalmanufacturer to its sealers, fallswith the raise ofproductprice given themanufacturer to itselfsealers, and hasno relation to themarketprice of the product.