A support construction method and a support construction device for a tree are disclosed. The support construction method includes the steps of: respectively driving a plurality of wood piles into a soil located around a soil ball of the tree, in which the soil ball is placed in a cavity of a land, and the wood pile includes a top surface and a side end surface nailing a tip of a first fixation part that is pivotally coupled with a fixation frame to the top surface of the wood pile, in which the fixation frame includes a first positioning unit and a second position unit enabling the first positioning unit and the second positioning unit to respectively couple to a first belt body of a first fastening element so that the first belt body is positioned to press the side end surface of the wood pile against the fixation frame and applying the first fastening element to bind the wood piles and the fixation frames to surround around the soil ball of the tree and applying a first locking unit of the first fastening element to engage the first belt body thereof, so that the wood piles and the fixation frames are tightly pressed against the side end surface of the soil ball to stably support the tree.一種樹木支持施工方法及裝置,係將複數支木樁分別打入一樹木的土球週邊的土壤內;其中該土球係被放置在土地的一凹穴內,該木樁具有上端面及側端面;使與一固定架樞接的一第一固定部的尖端釘入該上端面;其中該固定架具有一第一定位單元及一第二定位單元;使該第一定位單元及該第二定位單元分別結合一第一束緊件的一第一帶體,使該第一帶體獲得定位並壓迫該側端面抵靠該固定架;該第一束緊件束縛該複數支木樁及複數個固定架圍繞於該土球的周邊,藉由該第一束緊件的一第一扣合單元扣合該第一帶體,使該複數支木樁及該複數個固定架緊密的抵靠該土球的側端面,以穩固的支持該樹木。1...樹木支持施工裝置11...木樁12...固定架13...第一束緊件131...第一扣合單元132...第一帶體14...第二束緊件141...第二扣合單元142...第二帶體136...第一分解段2...樹木21...土球211...側端面212...上端面3...土地31...土壤32...凹穴
