with the rapid development of China"s domestic transportation construction, the construction volume of tunnel construction has increased rapidly. The construction of tunnels often has the characteristics of short construction period, high construction quality requirements and high construction technical requirements [1], so its demand for mechanization is increasing. The quality of tunnel construction is an inevitable trend in the future development, and mechanization is the primary task and prerequisite for the quality of tunnel construction. In view of the problem of low mechanization and informatization level of mountain tunnel construction, the Ministry of Transport of the People"s Republic of China put forward the requirements for building quality engineering. Many mountain tunnel constructions have carried out full-section mechanized construction technology exploration under the conditions of large-scale mechanical supporting equipment. The mechanization level of the construction of mountain tunnels has been greatly improved, and many new equipments and new technologies have emerged. The mechanization of mountain tunnel construction can be divided into two types: fractional step mechanization and integral mechanization.