PURPOSE: A street tree protection cover is provided to prevent soil from being tramped over by not adding the tread force of a pedestrian to the soil over the root system and preventing essential moisture for growth from evaporating inside the soil during the dry period. CONSTITUTION: A street tree protection cover comprises a support frame(10), a shutter(20), and an upper panel(30). A support frame comprises a bottom surface(11) and a side support(12), and a bottom surface has a through hole(13) forming an arrangement constantly. A shutter is correspondingly combined with the through hole of a support frame in order to open and close by a controlling unit. An upper panel is made of a panel structure and is installed in the upper part of a shutter in order to comprise the surface of a protection cover, and an up-down through type through hole(31) is formed to be arranged regularly all over the panel. A drain hole(14) is formed at regular intervals in the side support and the outer side of a through hole contacting with a bottom surface. An upper panel is formed to be connected with a natural stone in a mosaic.본 발명은 셔터기능을 부여하여 건조기에 수분증발을 조절하고, 단열기능을 부여하여 혹한기에 가로수의 동해를 예방하도록 한 가로수 보호 덮개에 관한 것으로, 바닥과 측면 지지대로 이루어지고, 바닥에는 일정하게 배열 형성한 통공을 갖는 지지프레임과； 조절수단에 의해 상기 통공을 개폐하도록 지지프레임의 통공에 대응 결합되는 셔터와； 보호덮개의 표면을 구성하기 위해 패널구조로 이루어져 상기 셔터 상부에 이격 설치되고, 상하 관통형 통공이 패널의 전면에 걸쳐 일정하게 배열형성되는 상부패널；로 이루어지는 것을 특징으로 한다.
