The fiberglass fabric is widely used in industries of petroleum, chemical, electric power, fire equipment, fire insulation and so on. One application of the industrial fiberglass fabrics is a safety buckle curtain. A safety buckle curtain consists of a curtain body, an upper beam, an auto slide-stop, and a control rope set. The auto slide-stop is installed within the upper beam to control the curtain body to a predetermined position. The control rope set has two opposite sides, a first and a second end. When the ropes are pulled, the male pin on the safety buckle is separated from the female pin so that the upper beam and the ropes are in a safe state.