Modular building self-adaptive skin system driven by natural ventilation performance

The invention provides a modular building self-adaptive skin system driven by natural ventilation performance. Relates to the technical field of building skin systems, and comprises a supporting frame, a middle support, a driving mechanism, a modular foldable skin and a skin unit stretching device, the supporting frame and the middle support support a building self-adaptive skin overall structure, and when an execution steering engine of the driving mechanism rotates in the forward direction, the center square of a skin unit rotates along with the execution steering engine; and under the traction action of the stretching device, the skin units are folded inwards, the skin is changed from stretching to contracting, and the building ventilation aperture opening ratio is increased, otherwise, when the execution steering engine rotates reversely, the skin is changed from contracting to stretching, and the building ventilation aperture opening ratio is decreased. The modular skin adapts to diversified building fac