The present invention relates to a prefabricated plastic greenhouse having an opening and closing apparatus for a thermal cover, which facilitates installation and disassembly, and can automatically open and close a thermal cover. The conventional plastic greenhouse has a frame fixated with a separate coupling means, which causes problems that the installation and the disassembly are not easy, and the plastic greenhouse is not economic due to the increased manufacturing costs and installation costs. In order to solve the problems, the present invention suggests a prefabricated plastic greenhouse having an opening and closing apparatus for a thermal cover, which comprises a support frame extended to the longitudinal direction and fixated a plurality of prefabricated frames installed to have an interval on right and left of the support frame in the longitudinal direction by a mounting unit mounted at the upper part of the support frame and coupled to the upper part thereof a thermal cover installed at the upper part of the prefabricated frame to be able to open and close and an opening and closing apparatus for opening and closing the thermal cover installed on the left side or the right side of the support frame by the operation of a driving motor. Accordingly, the present invention has an effect of more easily installing and disassembling a plastic greenhouse by fabricating the prefabricated frame constituting a framework of an inner greenhouse with a simple composition of mounting the prefabricated frame on the support frame. Furthermore, the thermal cover is more smoothly open and closed by the opening and closing apparatus, and the load applied to the driving motor is reduced by a tension wire, thereby preventing damage of the motor.COPYRIGHT KIPO 2015본 발명은 설치 및 분해가 용이하며 보온덮개를 자동으로 개폐할 수 있는 보온덮개 개폐장치가 구비된 조립식 비닐하우스에 관한 것이다.종래의 비닐하우스는 별도의 결합수단에 의해 프레임을 고정하기 때문에 설치 및 분해가 용이하지 않고 제작비용 및 설치비용이 증가하여 경제적이지 않다는 등의 문제점이 있는데, 이를 해결하기 위하여 본 발명은 길이 방향으로 연장되어 고정된 지지프레임과, 상기
