Taking the ZY2600/07/14 mode two leg hydraulic powered shield supports as the engineering object,based on the concentrated load and surface load exerting on the roof ,the outer load tests are carried.The load and application region is determined by the stents design parameter.Based on the 14 real pressure values ,the pressure distribution function and modal file which contains surface load information are respectively produced by Matlab software and ANSYS software.The virtual sample model that the height of work is at 1100mm is built in ADMAS and ANSYS in order to achieve both forms of the laod tests.The results of research indicate that the outer loading method using surface load is feasible and has a great importantance in both theory aspect and practical aspect,because the load case of the hydraulic support can be reflected actually.