The invention discloses a high-voltage charged rod tower sealing type malicious climbing prevention device. The high-voltage charged rod tower sealing type malicious climbing prevention device comprises a plurality of longitudinal isolation pieces and a plurality of transverse isolation pieces, the transverse isolation pieces are mounted on a cross section of a first section of an angle iron tower, the multiple transverse isolation pieces are paved on the cross section of the angle iron tower, the longitudinal isolation pieces are fixed to two tracks distributed up and down mounted on the periphery of the outer side of the first section of the angle iron tower, the longitudinal isolation pieces are mounted in the tracks side by side, opposite-opening doors are arranged on the two sides ofmain materials of foot pins mounted on an iron tower, and the opposite-opening doors are separately and longitudinally hinged to the respectively adjacent isolation pieces. According to the high-voltage charged rod tower sealing type malicious climbing prevention device, through trying of field operators, it is indicated that the device can prevent non-professional personnel from malicious climbing the high-voltage circuit angle iron rod tower, even if professional personnel cannot further clamp the tower rod under the condition of not obtaining corresponding unlocking devices, and the high-voltage charged rod tower sealing type malicious climbing prevention device does not occupy lands and does not change a rod tower structure.