The present invention relates to a tree protecting and weed-proofing structure that can effectively prevent weeds from being grown on a ground around trees, can prevent soil from being flown out in the direction of a weed-proof sheet, and can prevent trees being withered since soil wettability is excellent so trees can be actively grown. The tree protecting and weed-proofing structure of the present invention comprises a protective block installed to form closed space inside the ground around trees and a weed-proof sheet mounted on the ground of the closed space of the protective block.COPYRIGHT KIPO 2015본 발명은 수목 보호 및 방초구조에 관한 것으로서, 수목 주변 지면에 잡초가 생육되는 것을 높은 효율로 방지할 수 있을 뿐만 아니라 방초시트 방향으로 토사가 유출되는 것을 방지할 수 있고, 나아가 토사의 습윤성이 뛰어나 수목이 원활히 생육될 수 있어 수목이 고사하는 것을 방지할 수 있는 효과가 있다.