Based on the giant concrete silo in Huanghua part phase IV engineering,this paper introduces the structural optimization of the 40 m concrete silo in port.Using flat raft pile foundation,the construction procedure is accelerated.A large size tapered hanging funnel without supporting columns is implemented;The space for the equipment under the silo bottom is spacious,so it is very convenient to install and maintain the equipment;The ultra-light silo filler reduces the weight of the silo;The top ring beam of silo wall is canceled,and the sliding formwork construction is easy and accelerated.Reducing the width and height of the steel structure corridor located at the top of the silo,and the bottom and top integrated chord of the steel truss make the structure safer and more reliable.