With Fluent numerical simulation software,we analyze the wind speed at different heights and different horizontal distances from the underground coal storage with non-stack,compare the change of wind speeds at different heights and distances,demonstrate the feasibility of the new mode for the coal storage,and study the depth and slope of the underground coal storage of port.The results show that under the same wind-proof net,the wind speed in the field of the underground coal storage of port is similar to that of the traditional field and it is more economical due to its larger storage capacity while occupying less area.So,the new coal storage mode is feasible.