Based on large depth, thick alluvium, big pressure and high ground temperature of large depth mining, the frozen main shaft of Yangying Mine was taken as the example, through comparative analysis of double feed liquid pipe local frozen technology and local heat preservation technology, the result showed that local heat preservation technology reduced the cost of the project construction, improved the economic benefits of the enterprise. The application of local heat preservation technology provided reliable support for deep shaft and multiple circle hole freezing and deviated well localized freezing technology.