The present invention relates to a heat insulation cover for a vinyl greenhouse and, in particular, to a heat insulation cover for a vinyl greenhouse and a manufacturing method thereof, wherein, when used by being put on inner steel wire supports of a vinyl greenhouse, the cover has excellent heat insulation as sunlight comes inside the cover is not easy to damage since the P. P gunny cloths are used to adhere to the end part of the heat insulation cover when a user puts the cover to a vinyl greenhouse as moving along the furrow adjacent to the vinyl greenhouse production costs thereof are relatively low and the cover is light-weight and both ends thereof are heavier, thereby enabling a user to readily place the cover on the vinyl greenhouse. The heat insulation cover (1000) for a vinyl greenhouse of the present invention comprises: an air cap heat insulation cover (1100) having transparency with a constant width and length sufficient to cover steel wire supports and adjacent furrows and a P. P gunny cloth (1200) aligned on the end of the width direction of one side of the air cap heat insulation cover to have a narrower width than that of the air cap heat insulation cover and subsequently made adhere to the cover. The manufacturing method of the heat insulation cover for a vinyl greenhouse of the present invention comprises the following steps: (S1) providing sequentially a first transparent sheet, an air cap sheet and a second sheet to be welded to obtain an air cap heat insulation cover and (S2) aligning a P. P gunny cloth having a narrower width than that of the air cap heat insulation cover on one end of the width direction of one side of the air cap heat insulation cover to make the same adhere to the heat insulation cover.COPYRIGHT KIPO 2015본 발명은 비닐하우스용 보온덮개에 관한 것으로, 특히 비닐하우스의 내부강선활대에 덮어서 사용할 때 햇볕이 들어와 보온성이 우수함은 물론, 내부강선활대에 덮어서 사용할 때 비닐하우스이 골을 따라 작업자가 이동하면서 사용할 때 보온덮개의 단부에 P.P마대가 접착되어 쉽게 파손되지 않을 뿐만 아니라, 제조에 따른 비용이 저렴하고, 가벼우면서도 양단부가 조금더 무거워 설치시 덮는 작업이 용이하도록 된
