The purpose of consolidation grouting is to improve the integrity and elastic modulus of bedrock. Reducing the deformation of bedrock under stress; Improve the compressive and shear strength of bedrock; Reduce the permeability of the dam foundation and the amount of permeability. The field test results show that the elastic modulus of bedrock can be increased by 30% ~ 100%, sometimes by 1.5 ~ 2.0 times, or even more, after consolidation grouting for bedrock with relatively developed joints and fractures. Consolidation grouting in the plane of curtain grouting is helpful to increase the pressure of curtain grouting. Consolidation grouting should be carried out according to the principle of sequential compaction, which can be divided into two or three sequence construction; When arranging the overall project schedule, the construction time of consolidation grouting should be reasonably arranged.