The Passive Protection System is composed of components such as steel wire rope nets, steel mesh screens, anchor bolts, I-beam columns, tension ropes, tension reduction rings, bases, and 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, preventing the downward fall of collapsing rock and soil, thereby serving as a slope protection measure. The characteristics of the SNS Passive Protection System include: its flexibility and barrier strength are sufficient to dissipate the anticipated impact kinetic energy from falling rocks, and the design and use of tension reduction rings further enhance the system's shock capacity. Compared to rigid barriers and concrete retaining walls: this system has changed the original construction methods, reducing both the construction period and costs.