Because there is a layer of air in the middle of the double-layer film, the thermal insulation effect of the inflatable greenhouse is good, which is 5 ~ 6℃ higher than that of the single-layer greenhouse. Due to the use of the tension of the inflated membrane, the number of columns and arch bars can be reduced, and the construction cost of scaffolding can be reduced. Its shortcomings are that due to the limitation of welding technology, greenhouse gas leaks quickly, needs constant aeration, and the double-layer film has low light transmittance, which also affects crop growth. According to the frame structure of greenhouses, there are also types of yurts and steel wire hanging greenhouses, which are not widely used in production and will not be described.