The burial depth of all coal seams in Menkeqing minefield is high. The depth of 1st vertical shaft for ventilation is 749.5 m and the water-abundance of each stratum that the shaft penetrates is stronger. To ensure that the construction quality, progress, investment and other indicators of the shaft meet the demand, the new technology of monolayer side wall is adopted. After field control and process optimization, the construction successfully reached the bottom. Moreover, backfilling grouting was conducted timely according to the unfreeze condition of side wall and the desired effect was achieved.