Abstract: In view of the current situation that the detection technology and equipment of hydraulic support with large inclination is behind the development level of hydraulic support with large inclination. This paper developed the hydraulic support with large inclination, including main structure, rotary system, hydraulic system and test system, the technical problems of anti-down and anti-skid test of hydraulic support with coal seam inclination which is above 60 degrees、composite external loading test under inclined state and stepless adjustment of detection equipment’s height were solved. The testing equipment has a rotating angle of ±90°, average distributed load of 20 000kN, rated vertical external load of 11 000kN, rated horizontal external load of 6 000kN, rated lateral external load of 2 000kN, and table size of 7 200mm x 6 000mm.