The present invention relates to a water pocket for a tree, having a load deformation preventing structure, and the purpose of the present invention is to provide a water pocket for a tree, having a load deformation preventing structure, wherein a water pocket storing a predetermined amount of water is hung on the pillar or branch of the tree to supply water to the root of the tree, and here, an inside reinforcement member and an outside reinforcement member are further coupled to an upper fusion installation part of the water pocket； and a plurality of sticking connection rings are further installed at a front surface of the fusion installation part to which the inside reinforcement member and the outside reinforcement member are coupled, thereby preventing the tensile stress of the water pocket due to the load of the stored water and the resulting rupture and damage. The purpose of the present invention is attained by a water pocket for a tree, in which a water filing part is prepared on an inside surface of a water pocket body composed of a front film member and a rear film member, and a fusion installation part and a discharge part are provided at an upper surface of the water pocket main body and the center of a lower surface of the water pocket main body, respectively, wherein an inside reinforcement member and an outside reinforcement member are further coupled to the fusion installation part； sticking connection rings are further installed at the fusion installation part to which the inside reinforcement member and the outside reinforcement member are coupled； and the discharge part is composed of a spout with an expansion induction port and a fluid collector with an induction hole.본 발명은 하중변형 방지구조를 갖는 수목용 물주머니에 관한 것으로；그 기술구현의 목적은, 일정량의 물이 저장된 물주머니를 수목의 기둥 또는 가지 등에 매달아 수목의 뿌리에 수분을 공급하기 위해 마련된 수목용 물주머니에 있어서, 그 물주머니의 상부 융착설치부에 내측 보강부재와, 외측 보강부재를 더 결합시키고, 재차, 내측 및 외측 보강부재가 결합된 융착설치부 전면에 다수개의 밀착연결고리를 더 설치 구비되게 하여, 저장된 물의 하중에 따른 물주머니의 인장변형 및 그에 따른 파열 손상 등을 예방되도
