The belt tear monitoring system adopts linear structured light to capture tiny cracks with high precision and deliver second-level response, enabling early warning. The system features strong scalability and can be easily adapted to various complex operating environments. Equipped with diverse interface protocols, it supports connecting tear monitoring data to data processing devices such as edge computing controllers. Once belt tearing occurs, the system activates audible and visual alarms and triggers an emergency stop of the belt conveyor, effectively solving the problem of missing early warnings for main coal flow belt tearing.