The utility model provides a single -column lift gin pole, includes the bottom plate and installs telescopic link and the hoist engine on the bottom plate, the bottom plate is fixed subaerial, the bottom of telescopic link is fixed on the bottom plate, the assembly pulley hoist is installed to flexible the serving of telescopic link, the assembly pulley hoist is through first haulage rope and install the windlass connected on the bottom plate, the telescopic link passes through elevating gear and realizes flexiblely, the telescopic link passes through fixing device and realizes the fixed of flexible height, and this device labour saving and time saving is safe convenient, alleviates construction intensity, improves the construction progress, practices thrift the construction spending, and construction operation area is little, and the shoot of food crops damages fewly to reduce construction and contradiction and dispute that common people claimed damages, reduce because of contradictory dispute causes the phenomenon that hinders the worker and lodge a complaint and complain to the higher authorities about an injustice and request fair settlement, thereby gain good economic benefits and social.