Support-free fixed tree planting device

The utility model discloses a support-free fixed tree planting device which comprises an earth screen which is located on the upper surface of a slope repairing backfill layer and on a tree root pit and covers the tree root pit and a backfill soil layer which is located on the upper surface of the earth screen and fixes the earth screen, a rod body of a plant is located above the earth screen, and a plant soil ball of the plant penetrates through the earth screen and is located in the tree root pit below the earth screen. The tree planting ground net is simple in structure, the ground net is located between the backfill slope repairing layer and the backfill soil layer, the traffic passing ornamental function and the overall attractiveness of urban landscape are not affected, meanwhile, the tree planting ground net can be a straw rope woven net or a bark woven net or a bamboo fence woven net or a green and environment-friendly self-decomposition biochemical woven net, materials are convenient to take, light,