Abstract:   To increase the construction speed and hole quality of vertical feeding bore hole for solid materials in backfilling coal mining，based on analyzing the structure characteristcis of vertical feeding system，we analyzed the technological difficulties in drilling of vertical feeding system，and studied a set of construction techniques including the job practice，the pipeline installation，the method of inclination surveyor，et al．The results show that when using the technology which covers multistage drilling and chambering method，heavy crane or frame crane and float panel sinking method，and a variety of lateral deformation methods，the construction quality of vertical feeding system can be guaranteed．The technology has been successfully applied to a coal mine in China，while the bore hole driving speed can be reached to about 6 m/d，and the verticality is 1‰．

Key words:  , fully mechanized backfilling coal mining with solid material；construction technology of vertical feeding bore；bore hole performing