This container bag with top opening and bottom discharge port is specially designed for sand transportation, with a load capacity of 1000kg. The large top opening is convenient for quick filling of sand, and the bottom discharge port is convenient for accurate unloading. It is made of high-strength wear-resistant materials, has good sealing and durability, and can effectively prevent sand leakage and loss. It is an ideal bulk material packaging and transportation tool in scenes such as construction, sand and stone transportation.