In order to reduce the water inflow at the west water outburst point in No.211 mining area of Zhongmacun Mine and relieve the threat of mine water damage, the practical experience of the previous three water plugging projects was summarized. Combined with the underground construction space, the small curtain dynamic water grouting closure technology was carried out. By cutting off the water channel of the water outburst point, reducing the flow velocity and flow of the dynamic water, and combining with the surface grouting water plugging project, the water inflow of the west water outburst point in No.211 mining area was reduced from 408 m3/h to 60 m3/h, which provided engineering basis and experience reference for other mines to control the water outburst point under similar conditions.