The main structure of sluice spans a wide and deep bedrock fault fracture zone or influence zone in Panghai navigation-hydropower junction by the Qingshui River. The anti-sliding stability of the building is unfavorable due to broken structure and low mechanical strength of rock mass.It is difficult to grout when the traditional grouting method is used. Through the experiments，a pulsed grouting method based on the principle of“dense grout compaction，stage grouting and controlling pressure by section” is proposed.Sonic test shows that this grouting method has good effect and can effectively improve the integrity of foundation. Combined with the arrangement of consolidation grouting holes，anchor piles are set connecting the foundation and building.The safety coefficient of anti-sliding of sluices is improved considerably by the working mechanism of anchor piles.Through the practical implementation process，the ground treatment of consolidation grouting combined with anchor piles is confirmed more rapid and economical，which solves the problem of building anti-slip stability of the sluices and achieves the desired effect.