The invention provides a tower climbing anti-falling device and a falling suspension handling method thereof, and belongs to the fields of tower safety devices and methods. The tower climbing anti-falling device comprises a track. The track is vertically mounted on the ground and sleeved with a positioning device. The positioning device comprises a left half part and a right half part. One end of the left half part is hinged to one end of the right half part, and the other end of the left half part is connected with the other end of the right half part through a hasp. The positioning device is provided with a braking device. The braking device is provided with brakes. The brakes and guiding rollers are mounted on the inner side of the left half part and the inner side of the right half part. A connecting rod is hinged to the left half part. The other end of the connecting rod is connected to a belt of a worker. An angle sensor is mounted at the hinged joint of the connecting rod and the left half part. A control device is arranged on the outer side of the positioning device and controls the braking device to conduct braking according to angle information fed back by the angle sensor, so that the worker can conduct emergency rescue when danger occurs to pole climbing.