Based on the practices of grouting - reconstruction of aquiferous footwall stratum in the five mines of Jiaozuo mining area, this paper presents the determination and selection of grouting parameters, such as grouting hole, pressure, material and so on, analyzes the construction process and existed problems during the construction and the efficiency of the project. The restilts indicate that grouting - reconstruction technology not only can avoid the water inrush but also can protect the underground water resources effectively, meanwhile is reasonable in econom- ics and deserves to be popularized.