The present invention relates to a tree pruner. Blades are installed in the upper part of a connecting pole, made of a pipe material having a predetermined length, and a grip is installed in the lower part of the connecting pole, and then, an operating rod installed in the connecting pole is connected between a moving blade of the blades and an operating lever of the grip, and thus, if the operating lever is held and the operating rod is pulled, the moving blade is pulled toward a fixed blade to be combined, and if the operating rod is released, a coil spring installed between the moving blade and the connecting pole makes a returning force to separate the moving blade from the fixed blade, so the moving blade is returned to its original position while the operating rod is also returned to its original position to be prepared for the next operation. The connecting pole is divided and a combination pole is placed between the divided parts for connection or separation, the operating rod is able to be folded to enable the connecting pole to be folded in half for convenient storage and carrying when the pruner is not used, and a proper length is maintained through a length adjusting device when the length of the operating rod is changed. Moreover, when a user prunes a tree with the pruner, the edge of the moving blade is leaned toward the fixed blade to prevent the edges of the blades from hitting, so the user is able to safely prune the tree, and also, since the fixed blade includes a dented groove connected from the front end to the inside along the edge and having a different curvature, a branch between the upper and lower blades is cut well without slippage.본 발명은 일정길이를 가지는 파이프 소재로 된 연결장대 상단부에 가위날을 장치하고, 연결장대 하단부에 손잡이를 부착하여 가위날의 가동날과 손잡이에 장치한 작동레버 간에 연결장대 속으로 장치된 작동로드를 연결하여 손잡이의 작동레버를 잡고 작동로드를 당기면 가위날의 가동날이 고정날쪽으로 당겨져 교합이 되고, 작동레버를 놓으면 가동날과 연결장대 사이에 설치된 코일스프링의 복귀력으로 가동날이 고정날에서 이간되어 원위치 되면서 작동로드도 원위치되어 다음 작동에 대비할 수 있도록 한 고지가위에 있어서, 연결장대를 분할하고 분할된 사이에 결합관을 배치하여 연결하거나
