The invention relates to an air-inflated
membrane structure with a crossing
cable net arranged along a geodesic line. The air-inflated
membrane structure comprises an air-inflated membrane and bracing cables, wherein after the air-inflated membrane is shaped through inflating, the middle part of the air-inflated membrane is of a cylindrical body, the two ends of the air-inflated membrane are of smooth-transition arc-shaped
peripheral membrane faces, and the bracing cables are arranged on the
peripheral membrane faces along the direction of the geodesic line in a manner that anchor points at the two ends of each bracing cable are taken as starting points. Compared with the prior art, the air-inflated
membrane structure has the advantages that the concept that the geodesic line is the shortest in a spatial curved face is utilized, the crossing
cable net is arranged at the periphery of the air-inflated membrane along the direction of the geodesic line, and the bracing cables are restricted to
lateral movement and cannot be subjected to the problem of swinging under normal use; and as the bracing cables are restricted to the
lateral movement, the number of nodes, connected with the bracing cables, in the whole
peripheral crossing
cable net can be accordingly reduced, the stress on the nodes is smaller, the difficulty of construction is reduced, and then, the economical efficiency and safety of the structure are increased.