The Passive Protection System is composed of components such as steel wire rope nets, steel wire mesh, anchor rods, I-beam columns, tensioning ropes, tension relief rings, bases, and upper and lower support ropes. The system is formed by the combination of steel columns and steel wire rope nets, creating a cohesive unit that provides surface protection for the protected area, thereby preventing the descent of collapsing rock and soil masses and serving as a slope protection measure. The characteristics of the SNS Passive Protection System include: its flexibility and barrier strength are sufficient to dissipate and transmit the expected kinetic energy of falling rocks, and the design and use of tension relief rings further enhance the system's impact capacity. Compared to rigid barriers and concrete retaining walls: this has changed the original construction methods, reducing both the construction period and costs.