The present invention relates to a vinyl greenhouse structure obtained by covering a skeleton structure with vinyl, the skeleton structure comprising multiple arch-type skeleton frames (100) which have circular arc shapes, and which are arranged to be spaced apart by a constant interval, and horizontal connection frames (200) for horizontally connecting the arc-type skeleton frames (100) along both side surfaces thereof. More specifically, the present invention relates to a vinyl greenhouse having multistage ventilation structure frame, characterized in that the area of arrangement of the arch-type skeleton frames (100), which constitutes the entire length of the vinyl greenhouse (10), is divided into a first area (S1), a second area (S2), …, an Nth area (SN)； arch-type skeleton frames (100) configured to have the same height (H) are installed in the same area (first area, second area, or Nth area) constituting each of the areas； area-specific height differences (h) are formed from the first area (S1) to the Nth area (SN), thereby forming ventilation ports (20-1, 20-2, …, 20-N)； and outer air flows in through the ventilation ports (20-1, 20-2, …, 20-N) formed by the height differences (h) and moves via the upper end of the inside of the vinyl greenhouse (10), thereby inducing discharge of hot air inside the vinyl greenhouse (10) to the outside. The present invention is advantageous in that, by providing a vinyl greenhouse frame structure having a comparatively simple structure, not only substantial reduction in the installation cost can be expected, but inflow of outer air into the vinyl greenhouse and discharge of inner air therefrom are facilitated, thereby improving the ventilation efficiency, and occurrence of maintenance operations, maintenance costs, and the like after installation can be prevented.La présente invention concerne une structure de serre en vinyle obtenue en recouvrant une structure de squelette avec du vinyle, la structure de squelette comprenan
