The invention provides a universal three-way adapter loading device which comprises a jacking-type three-way loading device and a pulling-type three-way loading device. According to the universal three-way adapter loading device provided by the invention, through a rotatable groove with a T-shaped cross section, the loading requirements of different lifting tests such as horizontal lifting, vertical flip lifting and road transportation lifting of a lifting pile of a cabin section of a carrier rocket can be met, the test cost is lowered, the workload is reduced, the lifting test efficiency of the cabin section of the carrier rocket is effectively improved, and the test is promoted to be smoothly proceeded.