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  The wall-cutting filling method is suitable for the extremely thin ore veins in which the ore and the surrounding rock are in obvious contact and easy to separate, the valuable ore or the high-price rich ore, the surrounding rock does not contain the grade, and the thickness is less than 0.3-0.4 m.
The outstanding advantage of this mining method is that it can minimize the waste rock mixing rate of the ore, and the filling material can effectively support the surrounding rock so that large-area misalignment does not occur. Compared with the mixed mining method, the disadvantage is that the mining process is many and complicated, the mining efficiency is low, the material consumption is high, the laying quality of the cushion is strict, the mining capacity and work efficiency are low, and the labor intensity is large when manually moving the ore. Compared with mixed mining, although the mining cost is high, the final benefit of the mine will be significantly improved due to the reduction of the waste rock mixing rate and the improvement of the ore grade.