A self-developed quick installation device for metal anchor cable is introduced; the prototype was developed by the study on the auxiliary installation device in the structure design, processing, laboratory tests and construction technology research. Field test results show that with its unique structure and properties, the anchor cable auxiliary installation device has the characteristics of strong practicability and easy site operation in construction, which can not only greatly reduce the labor intensity, but also can increase the speed of the anchor cable installation and technical reliability in the large-diameter and long anchor cable construction in the complex formation. The auxiliary installation device of anchor cable is especially suitable for the steep slope anchor cable construction.