The invention provides an inter-framework flexible bus hanging point rotary connecting device. The inter-framework flexible bus hanging point rotary connecting device comprises a first connecting body and a second connecting body, wherein a first end of the first connecting body is used for being connected with a U-shaped ring on a flexible bus, a second end of the first connecting body is rotatably connected with a first end of the second connecting body, and a second end of the second connecting body is connected with a framework. In the inter-framework flexible bus hanging point rotary connecting device provided by the invention, the second connecting body and the first connecting body are rotatably connected, when the second connecting body cannot be connected with the framework in direction, the direction of the U-shaped ring is not required to be adjusted, and connection between the flexible bus and the framework can be realized by only rotating the connecting body, the operation is simple, and the work efficiency is improved. In addition, the second connecting body is rotated in the invention, and the flexible bus does not spin, so that the stress performance of the flexible bus is not reduced, and the safety of a power transmission line is ensured to a certain extent.