The utility model discloses a pole holding mechanism of a manned pole climbing device for pole climbing operation, which comprises two sets of pole holding mechanisms used for respectively jacking a pole tower from the left side and the right side of the pole tower and clamping the pole tower together with a driving wheel of a walking mechanism; the holding pole mechanism comprises a sliding retractable arm, a connecting rod mechanism, a pincer-like arm and an electric cylinder; the sliding folding and unfolding arm is in sliding connection with the shell and can linearly move along a slidinggroove clamping rail on the shell; a body of the electric cylinder is hinged to the shell, and the end of the extending end of a piston rod of the electric cylinder is hinged to the connecting rod mechanism. The connecting rod mechanism is further hinged to the sliding folding and unfolding arm and the pincer-like arm. The pincer-like arm is hinged with the sliding retractable arm; and a driven wheel is arranged in a groove on the pincer-like arm. And a centrifugal ratchet device for preventing falling is arranged on a wheel shaft of the driven wheel. The manned pole climbing device disclosedby the utility model has the advantages of tightly holding a pole tower in the pole climbing process of a worker, being capable of preventing safety accidents of high-altitude falling, improving the safety and reliability of pole climbing operation and the like.