<p>[Problem] To provide a vinyl agricultural house that has a double film structure and does not require ventilation or high-height work on the roof. [Solution] This vinyl agricultural house is characterized in being configured so that panel members (10), in which an air insulation layer is formed by stretching a transparent film (11) on both surfaces of a rectangular frame (13) that has a given thickness, can be attached to or detached from a vinyl house structural member (20) in units of a panel member (10).</p>