Abstract: The study takes a vertical shaft in the water-bearing fragmented section as the engineering background, carries out drill core geological survey, and analyzes the stability of the shaft wallrock in -1000--1200 m according to the stability diagram based on rock geological mechanical classification, in order to provide basis and reference for the plan making of shaft construction and in-service wall rock stability control. The concrete wall of the shaft wall rock in the water-bearing fragmented section is calculated, the new shaft wall rock support designs are proposed, and the deep vertical shaft support design notion of pressure-free concrete shaft is determined. The exposed height of excavation work face is increased to fully release the shaft wall rock pressure. Then, the shaft is supported by temporary support + concrete shaft wall structure and the effect is monitored in real-time. The results show that the support means can make it through the shaft water-bearing fragmented section.