The present invention relates to a greenhouse structure having a roof with a controllable tilt-angle comprising: one pair of side walls facing each other one pair of roof panels each having one end connected to the upper end of the side wall rotatably, and the other end facing each other towards the central part of the greenhouse structure a cover part disposed on the upper part of the roof panels, on the upper central part of the greenhouse structure in which the pair of roof panels face each other a support pole which supports the lower part of the cover part and which can move up and down by a drive gear and one pair of support bars, fixed to the support pole, supporting the underside of the roof panels so that sliding is possible. The tilt-angle of the roof panels is controlled by the sliding motion of the support bars, fixed to the support pole, against the underside of the roof panels on the basis of up and down movements of the support pole. The present invention can reduce an effect of an external load on the greenhouse structure due to climate conditions, such as snow or wind loads. Further, a change in the tilt-angle of the roof does not adversely affect the safety of the greenhouse structure as light-weight and highly durable materials are used, and the greenhouse structure has the advantage of enabling a real-time control by automatically adjusting the tilt-angle of the roof on the basis of a detected external load, even when there is no person to take care of the greenhouse structure.La présente invention porte sur une structure de serre ayant un toit ayant un angle dinclinaison réglable, laquelle structure comprend : une paire de parois latérales se faisant face une paire de panneaux de toit ayant chacun une extrémité reliée à lextrémité supérieure de la paroi latérale de façon rotative, et les autres extrémités se faisant face vers la partie centrale de la structure de serre une partie de revêtement disposée sur la partie supérieure des panneaux de
