The author in detail introduces application of pressure grouting penetration in treatment for foundation dent that has keen caused by goaf in the paper.The bearing capacity of foundation treatment attains normative require that illustrates the grouting penetration is practical in treating foundation dent caused by goaf.The engineers and technicians determine reasonable design parameter,choose wellbehaved construction equipment,draw up operable construction procedure and a set integrated quality system by test in the process of making use of grouting penetration method treating foundation dent.