Abstract: In response to the problems such as downward mining upward filling,and roof broken faced by the solid filling hydraulic support during the stoping process of the first comprehensive mechanized solid filling working face due to the existence of collapse columns and faults in Xiaohuigou Coal Mine,the geological adaptation characteristics of the hydraulic support are verified in aspects of hydraulic support structural form,support performance,bearing characteristics,motion interference characteristics,and compaction characteristics by means of comparing the four column type and six column type structural forms,evaluating and judging the weight method for rock strata at the height of the collapse zone and 6-8 times heavy stress method for mining high rocks,constructing six types of load form evolution load ratios,and Creo software simulation,etc.The results indicate that the selected supporting type filling hydraulic support can better adapt to the complex geological conditions of the first filling working face in Xiaohuigou Coal Mine.