In this study, we developed an inspection system integrating multiple inspection modes for the detection of complex weld surface defects. On the one hand, the system integrates a total of 4 detection modes including offline and online detection. On the other hand, the system can display visualization and quantitative results for the classification and position of defects in real-time, and make an overall evaluation based on these results. It provides detailed suggestions and new ideas for the high integration and intelligence of the weld surface defect detection system.