The present invention is to improve efficiency by manufacturing a vinyl greenhouse capable of enduring not only a load of the upper part of the vinyl greenhouse but also the rainy season or a strong wind in the summer, and using a photovoltaic power-generating and light-collecting device simultaneously as the frame of a photovoltaic power generating device is fixed to the self-frame of the vinyl greenhouse by installing the photovoltaic power-generating and light-collecting device on the upper end part of the vinyl greenhouse without greatly modifying the structure of operated existing vinyl greenhouses. The present method helps a farmer to operate the vinyl greenhouse by not only self-supplying power necessary for the vinyl greenhouse but also occasionally selling generated power as the photovoltaic power generating device is installed on the upper end part of the vinyl greenhouse to be able to utilize spare space and uses the generated photovoltaic power in cultivating crops or for other purposes. Also, provided are the photovoltaic power generating device, which can be replaced easily and demands low costs, and an installing method thereof as the vinyl of the vinyl greenhouse can be restored to an original state by replacing part of the vinyl, which has been installed separately for right and left parts, when the vinyl of the vinyl greenhouse is damaged. The photovoltaic power generating device comprises: the vinyl greenhouse having a main frame for forming a framework a photovoltaic power generation part including multiple photovoltaic modules and base stones and a vinyl installation stand fixed underground.COPYRIGHT KIPO 2016본 발명은 기존에 우리가 운영하던 비닐하우스라는 개념의 구조를 전혀 크게 개조하지 않고서도 비닐하우스의 상단부에 태양광 발전,집광장치를 설치함으로써, 비닐하우스의 자체 프레임에 태양광 발전장치의 프레임을 고정시켜 비닐하우스의 상부에 발생되는 하중을 견딜수 있을뿐더러 ,여름철 장마나 강풍등에도 견딜 수 있는 비닐하우스를 제작하여 태양광 발전,집광장치를 동시에 사용함으로서 효율을 높이고자 하는 것이다.이러한 방법은 비닐하우스 상단부에 태양광 발전장치를 설치하므로서 잉여의 공간활용을 할수있을뿐만 아니라,상기의 발전된 태양광 전력을 자체 농사물을 재배하거나 기타 다른 용도에도 사용할수 있기 때문에 비닐하우스에 필