The present invention relates to a multiple vinyl fixing structure for a vinyl house, which enables vinyl used for insulation of a vinyl house to be installed in multiple layers and firmly fixates the same. The multiple vinyl fixing structure for a vinyl house comprises: a frame mounting support coupled to an existing frame a plurality of vinyl crushing supports overlapped in the frame mounting support and a fixing support coupled to an upper portion of the vinyl crushing supports. According to the present invention, the fixing structure comprises: a frame mounting support in which an insertion groove, into which the frame is inserted, is formed in a lower portion thereof, an upper portion thereof protrudes, and protruding protrusions are symmetrically formed on both side portions thereof in the longitudinal direction a clip having a shape of covering the frame, and having a bent shape to fixate the frame mounting support to the frame as both end portions thereof are engaged in the protrusions formed on both sides of the frame mounting support two or more vinyl crushing supports stacked on top of each other, which are convex upward while having a concave shape matched with an upper protruding shape of the frame mounting support and a fixing support which has a concave shape matched with an upper protruding shape of the vinyl crushing supports while being convex upward, and has a string mounting groove in which a fixing string is mounted in the middle of the upper surface thereof. Vinyl is inserted between the frame mounting support and the vinyl crushing supports, between the vinyl crushing supports, and between the vinyl crushing supports and the fixing support the fixing string is installed in the string mounting groove of the fixing support and a plurality of vinyl are installed in multiple layers at regular intervals.COPYRIGHT KIPO 2015본 발명은 비닐하우스의 단열을 위하여 사용되는 비닐을 다중 겹으로 설치할 수 있도록 하고 이들을 견고하게 고정할 수 있는 것으로, 기존의 골조에 체결되는 골조안착대와, 골조안착대에 포개지는 다수 개의 비닐압지대 및 비닐압지대의 상