Lopping shear or lopper of the scissor type provided with a pruning head comprising a blade and a counter-blade which are supported by a blade-support placed on a support of the pruning head, in which the pruning head is provided with a movement device (9, 12, 19) intended to control a reciprocal closing movement of blade and counter-blade from an open position to a closed position for cutting a piece placed in the opening formed by blade and counter-blade, the pruning head being further provided with a return elastic means for the return to the open position, the lopping shear or lopper being provided with a telescopic rod (14, 15) for telescopic variation of the length of the lopping shear or lopper, the telescopic rod (14, 15) bearing on a first end the pruning head and comprising near or in correspondence of an opposite end control means of a driving system (13, 21, 27) of the lopping shear or lopper for the control of the movement device (9, 12, 19), in which the driving system (13, 21, 27) is connected to a first rope or belt extending in a direction of longitudinal development of the telescopic rod (14, 15), the first rope or belt being intended to couple with the movement device (9, 12, 19) according to a configuration in which: - a traction action applied on the first rope or belt by the driving system (13, 21, 27) according to a traction direction of the movement device (9, 12, 19) corresponding to the longitudinal development direction of the telescopic rod (14, 15) corresponds to - a traction action applied by the first rope or belt on the movement device (9, 12, 19) intended to control a reciprocal closing movement of blade and counter-blade, characterized in that the driving system (13, 21, 27) includes an electrical motor which is placed according to a longitudinal assembly direction developing essentially parallel with respect to the longitudinal development direction of the telescopic rod (14, 15), the motor being connected for actuation to a winding pulley for winding or unwinding the first rope or belt with a rotational axis which is parallel with respect to longitudinal assembly direction and longitudinal development direction of the telescopic rod (14, 15) in which a winding direction of the first rope or belt is inclined with respect to the longitudinal development direction of the telescopic rod (14, 15), the driving system (13, 21, 27) further comprising return means (10, 11) for return in a guided condition of the first rope or belt with variation of said traction direction applied on the first rope or belt from a parallel condition with respect to the longitudinal development direction of the telescopic rod (14, 15) to a direction corresponding to the winding direction of the first rope or belt on the winding pulley. - a traction action applied on the first rope or belt by the driving system (13, 21, 27) according to a traction direction of the movement device (9, 12, 19) corresponding to the longitudinal development direction of the telescopic rod (14, 15) corresponds to - a traction action applied by the first rope or belt on the movement device (9, 12, 19) intended to control a reciprocal closing movement of blade and counter-blade,