Abstract: It has been a controversial issue in the field of the designation of big inclined wall in column-supported silo. Taking Han jia wan colliery of Northren Shaan Mining Co.,Ltd as an example.The paper covers the Calculation and analysis for two structure models of the normal and the vertical with Midas/gen. which represent the different schemes of Big big inclined wall in column-supported silo in coal preparation plant. Focusing on the Comparisons of mechanical properties of the two different schemes and ensuring the normal scheme is recommendation which can be used for the designation and study of the column-suppert silos. Focusing on the Comparisons of mechanical properties of the two different schemes and ensuring the normal scheme is recommendation which can be used for the designation and study of the column-suppert silos.