According to the difficult conditions of complex formations, much bed crack and serious water inflow in the construction of AKT1-1 geothermal drilling hole in Wenquan County of Xinjiang, the borehole structure design, drilling equipment selection, drilling tool gradation selection, new drilling process and flushing fluid preparation are summarized in this paper and corresponding drilling technologies and countermeasures are put forward to accumulate the construction experience for deep geothermal drilling in this region.