Multi-span greenhouse is an upgrade greenhouse,actually is a kind of super large greenhouse.It connects independent single greenhouse together by means of scientific methods,reasonable design,excellent material. Multi-span greenhouse can make full use of space,realize large-scale machinery or qutomation control;save the surrounding material,reduce the cost. According to the different application,can choose different covering material,it can be poly carbonate greenhouse,glass greenhouse,film greenhouse,etc.Based on the land characteristics,can design different size and height.Multi-span greenhouse has been widely used in vegetables cultivation,flower cultivation,ecological restaurant,agriculture sightseeing,etc.