Abstract: Deep Rock introduced a complex crossing point under the conditions of Construction and Support Technology. Complex geological conditions (faults nearby, soft rock) Intersection construction difficult, the problem of high quality requirements, in-depth analysis of rock bearing capacity and mechanism of change, boldly explore, from the construction and support of the entire process technology optimization, innovative and useful practice, the actual results prove that the new technology improved the construction and supporting technology is successful, the complex geological conditions of a large section of the more important guiding significance.