The utility model provides an insulating branch saw with adjustable, including the saw blade, the saw blade comprises the sawtooth of lower part and the blade on upper portion, the saw blade is fixed at the general purpose overheadly, at the overhead fixture who forms by connecting rod, preceding gripper jaw, back gripper jaw, spring and baffle that still is equipped with of general purpose, fixture is articulated with the general purpose head, and can slide in the general purpose head, is equipped with the insulator spindle of a plurality of through threaded connection below the general purpose head. Simple structure is sawed to this branch, the function is various, can regard as handsaw or hook to use, and the branch saw has fixture, but in use firmly graspes the branch, makes things convenient for cuing off of branch, and quick adjustment can be carried out according to the required height of job site to this branch saw adjustable length simultaneously, and convenient to use is laborsaving at the operation scene, ensures operation personnel's personal safety simultaneously.