Rotary digging is commonly used pile construction method in China, because of the properties of high efficiency, low noise, environmental protection and high quality of hole forming, rotary drilling rig has wide range of construction. Different types of bit should be chosen to meet different construction formations. By the rational selection and the use of auger drill bits, the construction technology and application field of auger drill can be enriched and broadened. The establishment of auger drill bit database system can provide data support for design, manufacture and type selection of auger drill bit to meet the increasingly complex construction requirements. This paper introduces the design of database system of design and manufacture of auger drill bit and the application.