Novel tree supporting device for tree planting

A novel tree supporting device for tree planting comprises a position control supporting rod, a fixed supporting plate, a gear disc, a fixed retaining ring, a threaded supporting rod, a movable supporting sleeve, a movable supporting rod and a movable shifting plate, the fixed retaining ring is provided with a fixed connecting plate, a fixed screw penetrates through the fixed connecting plate, the two ends of the fixed screw are connected with fixing nuts through threads, and the fixed retaining ring is divided into an upper fixed retaining ring body and a lower fixed retaining ring body. The upper fixing retaining ring is provided with a main connecting lug, the lower fixing retaining ring is provided with a main connecting block, the main connecting lug is connected with the main connecting block through a movable shaft rod, the movable shaft rod is sequentially connected with the main connecting lug and the main connecting block, the upper fixing retaining ring is connected with a first spring strip, the f