A Hydroponic planting method for woody plants and a system thereof are disclosed, which particularly refers to a symbiotic plant cultivation method and system created by using a stable structure and planting method. The method comprises the steps of: (1) planting seeds in a cultivation pot for three to four weeks so as to grow hydroponic plants (2) pulling the hydroponic plants that had been cultivated for three to four weeks in the cultivation pot and then performing soil removal (3) soaking the soil-removed hydroponic plants in a plant growth hormone cultivation liquid received in an utensil for two to three hours (4) removing the hydroponic plants that had been soaked in the plant growth hormone cultivation liquid for two to three hours from the plant growth hormone cultivation liquid and placing the hydroponic plants in the container (5) filling a filler material into the container that is disposed with the hydroponic plants (6) placing the container in a water vat that is received with water therein, in which the root part of the hydroponic plants disposed in the water vat is able to slightly contact with the water and (7) completing the cultivation of the hydroponic plants when the root part of the hydroponic plants disposed in the water of the water vat are getting used to the aquatic environment inside the water vat, in which the root part of the hydroponic plants naturally extends into the water.本發明之一種木本植物水中栽植方法與系統,尤指一種使用穩固的結構與栽種方法創造出一共生的植物栽植方法與系統。該方法係包括以下步驟:(1)將種植用種子以培養盆內種植培養3~4周成長形成水耕植物;(2)將種植培養3~4周之水耕植物於培養盆拔離後去土;(3)將去土後之水耕植物浸泡於盛有植物生長激素培養液之器皿中2~3小時;(4)將浸泡植物生長激素培養液2~3小時之水耕植物取出,並將水耕植物盛裝於該容器中;(5)將放置有水耕植物之容器內填入填充物;(6)將該容器置放於一內盛有水之水缸上,且該置放於水缸內之水耕植物的根部可與水面相輕微接觸;(7)待置放於水缸之水耕植物的根部適應水缸內之水生環境時,該根部便自然延伸至水中,即培育完成。(1)~(7)‧‧‧步驟編號