Due to no reference to follow for the layout rule and design standardcoal of drop tower structure and the complicated variety of structure occurrence conditionin timporal spatial domain before GB50583-2010 enforced,which resulted in the design and construction of structure to take engineering experience value as reference and the conventional theoretical calculation can not reflect the real force state of structure. The paper took 3# coal tower of Yangquan mine in Shanxi province as the engineering background,and used ANSYS software to calculate the working load conditions for 360°,270°,180°,90° sector reactor coal angle and no reactor coal under the maximum reactor coal height of 25m. Based on the comparative analysis of vertical and ring direction displacement and stress parameters, it got the change law of static feature, the biggest unfavorable load condition, the maximum stress region and the maximum displacement of structure induced by horizontal tensile force of belt conveyer.The result can provide the role of theoretical guidance for theoretical research and engineering design.