Abstract: Xin’anjiang dam has been in operation more than 40 years.The article expatiated on that foundation consolidation grouting treatment should consider the dam structure, upstream water pressure, drainage hole, uplift hole, geological conditions in the terms of dams in operation, in the limited inner dam space and gain the grouting parameters by testing through introduction of the project foundation consolidation grouting treatment design, grouting testing and construction. The experience of Xin’anjiang dam foundation grouting is of reference value to similar projects.