Abstract: Waterproof gate chamber is one of the coal mine safety facilities in coal mine underground waterproof. According to the actual situations of geological conditions and development layout in Jinjie Coal Mine of Shendong mining area. Waterproof gate chamber is decided to construct in central roadway in 3^-1coal seam. The paper mainly introduces the position determination, structural form selection, size determination of front and rear chamber in chamber body, the selection of water release ways, and points out some specific requirements of the construction of the gate chamber, which provides the reference for the design and construction of mine waterproof gate chamber under similar geological conditions in Shendong mining area.