The present invention relates to an apparatus for inducing a tree root growth direction, and more particularly, to an apparatus for inducing the tree root protective growth for pedestrian safety and underground facility protection, which has the diameter of a lower inner peripheral surface formed to be slightly greater than that of an upper inner peripheral surface, performs artificial creation with a ground sidewall body formed to the outside of a planting sidewall body to form the planting sidewall body formed with vertical and horizontal holes and a gravel filling layer, physically forms a tree root growth direction to optimize a growth environment, such as moisture and oxygen supply, such that the growth of trees is assisted, and tree roots are prevented from being grown to an upper portion of the ground or a lower portion of a road or facility to suppress withering of the trees after trees are planted. According to the present invention, a tree root growth direction planted to a complex, a road, a park, etc. is toward a lower side to prevent roots from being exposed to an upper portion of the ground or grown to underground facilities so as to prevent traffic obstruction of a vehicle and a pedestrian, and to prevent facilities from being damaged by the roots. Also, a gravel filling layer is formed, and a plurality of horizontal and vertical holes are formed to smoothly supply moisture and oxygen to the roots and to smoothly discharge carbon dioxide generated from the roots so as to allow the smooth growth of the tree. In addition, a gravel filling layer is formed, basalt-based fine gravels having pores are filled, and useful microorganisms are injected into the pores to help the growth of the tree.본 발명은 수목 뿌리 생장방향을 유도하는 장치에 관한 것으로 더욱 상세하게는 하부 내주면 지름이 상부 내주면 지름보다 소폭 큰 형상을 이루고, 수평수공 및 수직수공이 형성되는 식재측벽체와 자갈채움층이 형성되도록 식재측벽체 외방으로 형성되는 지반측벽체 등으로 인위적 조성 및 물리적으로 수목 뿌리 생장방향을 이루어 수분 및 산소 공급등의 생장환경을 최적화시키는 것이며, 그에 따라서 수목의 생장을 돕고, 수목 식재 후 수목 뿌리가 지면 상부 또는 도로 하부나 시설물 하부로 자라는 것
