Tree high branch pruning device

A tree high branch pruning device belongs to the technical field of branch pruning and comprises a hollow rod A and a hollow rod B. The top end of the hollow rod A is rotatably provided with an adapter part, one end, away from the hollow rod A, of the adapter part is rotatably connected with the hollow rod B. The outer surfaces of the ends, close to the adapter part, of the hollow rod A and the hollow rod B are provided with threads. A connecting sleeve is installed at the thread position of the hollow rod A in a threaded connection mode and can be connected to the thread position of the hollow rod B in a threaded connection mode after being twisted and moved upwards, a fixing frame is fixedly installed at the end, away from the switching component, of the hollow rod B, a cutting motor is fixedly installed in the fixing frame, and a cutting blade is installed on the outer surface of an output shaft of the cutting motor. According to the folding type cutting device, the hollow rod A and the hollow rod B can be