The utility model provides a device that overturns product from a boat to a sandblast machine, which comprises a boat unloading and sandblasting sieve basket and a boat unloading push rod. The boat unloading and sandblasting sieve basket is composed of a basket bottom and a basket brim; a plurality of small through holes, which has smaller diameter than the product and are arranged regularly, is positioned at the basket bottom; the boat unloading push rod is composed of a push board and a handle. During operation, the coat unloading push rod is adopted to close together the products arranged at intervals on the boat, buckles the boat unloading and sandblasting sieve basket reversely on the products and then reverse the product and the boat for 180 degree, so that the surface of all the products that originally connects to the boat is turned up and arranged one by one regularly in the boat unloading and sandblasting sieve basket. Then, remove the boat and adopt the sandblasting basket of the sandblast machine to perform sandblasting process, so as to enhance the processing efficiency of boat unloading and oriented sandblasting, enables that the waste materials in sandblasting can be discharged from the small through holes at the bottom of the boat unloading and sandblasting sieve basket as well as ensures that the coating on the surface of each product connected to the boat can be removed without damaging the blade edge.