In chemical plants, equipment maintenance and pipeline inspections are frequent, and the risk of falling cannot be ignored. The horizontal lifeline system is an effective means of protection. It consists of high-strength steel cables, solid anchor points and anti-detachment connectors, and is laid rationally along the working area. After wearing safety belts, workers can move flexibly, and the lifeline provides continuous protection. The system is easy to install and has low maintenance costs, which can significantly reduce falling accidents and ensure the safety of chemical production.