A plant fixation structure comprises a pillar main body, a hammer member and an elastic member. The pillar main body having a hollow chamber is opened with two slide grooves on a peripheral side to communicate with the hollow chamber. The hammer member installed in the hollow chamber of the pillar main body comprises a transverse rod and a straight rod. Two ends of the transverse rod are exposed to the slide grooves of the pillar main body respectively. The elastic member is installed in the hollow chamber of the pillar main body and sleeved to the straight rod of the hammer member. One end of the elastic member is elastically abutted against the transverse rod of the hammer member and the other end is elastically abutted against the bottom surface of the hollow chamber of the pillar main body. By sliding the transverse rod of the hammer member along the direction of the slide grooves of the pillar main body and by using a distal end of the straight rod of the hammer member to uninterruptedly impact the pillar main body, the pillar main body can be gradually inserted in the soil. Accordingly, a user can use the disclosed plant fixation structure to fasten a tree to avoid the waste of time and physical strength and the occurrence of danger.本發明一種植物固定結構,其包括:一具有中空室之柱幹體,而在柱幹體的外周側係開設有二滑溝與中空室連通;一裝設於中空室內之錘擊件,錘擊件係具有橫桿部及直桿部,又錘擊件的橫桿部兩端分別凸露於滑溝;一彈性件,其裝設於中空室內並套設於錘擊件的直桿部,該彈性件的一端係彈抵於錘擊件的橫桿部,另一端則彈抵於柱幹體之中空室的底面;其中,透過錘擊件之橫桿部沿著該二滑溝的設置方向滑動,且直桿部末端不間斷的撞擊柱幹體,使得柱幹體逐漸插設於土壤內,藉此即可提供使用者固定樹木,免除了時間、體力的浪費以及危險性的發生。(1)‧‧‧柱幹體(12)‧‧‧滑溝(2)‧‧‧錘擊件
