The present invention relates to an insulation plastic greenhouse which is capable of reducing the cost of facilities and improving installation workability by simply installing the insulation plastic greenhouse and enabling the insulation plastic greenhouse to have excellent heat insulation performance, and which is capable of reducing heating costs or cooling costs by improving insulation properties. An insulation plastic greenhouse according to the present invention includes: a plurality of internal props which are formed in an arch shape and which are separately fixed to the ground in regular intervals a first plastic layer which covers the upper side of the internal props an air tube group which includes a plurality of unit air tubes installed toward in a direction that is perpendicular to the internal props such that each of the unit air tubes is closely adhered to the upper side of the first plastic layer, other unit air tubes being disposed in parallel to the side direction of an arbitrary unit air tube such that the other unit air tubes are closely adhered to the arbitrary unit air tube to form a first air layer in each of the unit air tubes and to form a second air layer between the bottom outer surface of an adjacent unit air tube and the first plastic layer at the same time external props which are formed in an arch shape having a size larger than that of the internal props, both bottom portions of which are fixed to the ground at positions between the internal props, and which are positioned such that intermediate portions of the external props are closely adhered to the upper side of the air tube group to support the air tube group and a second plastic layer which covers the upper side of the external props, and is closely adhered to the top surface of the air tube group such that a third air layer is formed between the second plastic layer and the top outer surface of the adjacent unit air tube.COPYRIGHT KIPO 2016본 발명은 간편하게 설치할 수 있으면서도 뛰어난 단열성능을 갖도록 하
