A support construction method and a support construction device for a tree that fit for a tree soil ball scale are disclosed. The support construction device includes a base, a moving part, a first fastening element and a second fastening element. The base and the moving part, which are formed as a slidable assembly for supporting the soil ball, is capable of being adjusted in accordance with the size of the soil ball, applicable to various sizes of soil balls. The first and second fastening elements with easily-adjustable lengths can be utilized to stably fix different sizes of soil balls of tree species, capable of being not conspicuous in the aspect of landscape, not destroying the soil balls in the aspect of tree growth, and stably supporting the soil ball of the tree by respectively driving the tips of the moving parts in a sidewall soil formed with cavities or respectively passing nails through positioning holes of the moving parts to drive in a fixed structure to stably support the soil ball of the tree in the aspect of support strength.一種適合樹木土球規格的樹木支持施工方法及裝置,使承載土球的基座及活動件為可以滑動式的組合,可配合土球的大小作適當的調整,可適用於多種不同大小的土球,且使用容易調整長度的第一束緊件及第二束緊件,使土球的大小不均一的樹種也可以穩定的被固定,可提供在景觀方面不會顯眼,在樹木的生長方面不會破壞植栽土球,在支持強度方面,利用複數個活動件的尖端分別被打入形成凹穴的側壁的土壤內、或藉由複數支釘分別穿過該複數個活動件的定位孔釘入固定結構內,可以穩固的支持樹木的土球。1...適合樹木土球規格的樹木支持施工裝置10...基座101...第一套接部11...活動件111...第二套接部112...板113...補強片114...塊體115...傾斜段116...尖端12...固定架13...第一束緊件131...第一扣合單元132...第一帶體133...第一分解段14...第二束緊件141...第二扣合單元142...第二帶體2...樹木21...土球211...側端面212...上端面3...土地31...凹穴32...側壁
