Abstract: The Linglong Gold Field is a globally representative quartz vein-type gold mineralization zone, with orebody distribution strictly controlled by regional fault structures. Quartz veins generally occur in groups, with numerous vein branches distributed on both flanks of the main vein. Investigating the spatial relationship between main vein and vein branches is of great significance for regional geological exploration. Based on long-term structural mapping and geological research, a "入"-shaped structural ore-controlling pattern is proposed for the Linglong Gold Field. The study reveals that the main vein and vein branches typically exhibit low-angle oblique intersections, forming a geometry resembling the Chinese character "入". The main fault is usually characterized by multi-stage activity and serves as the ore-guiding channel, while the secondary faults intersect it at acute angles, forming transtensional or transpressional fractures that provide favorable ore-hosting space. Applying this structural model, several high-grade vein branches have been discovered in the hanging wall of Vein Branch 108 in the Xishan ore section and Vein Branch 48 in the Dakatou ore section, marking significant breakthroughs in prospecting. These findings not only enrich the structural metallogenic theory of the Linglong Gold Field but also provide a scientific basis for deep and peripheral exploration. The study offers valuable reference for the exploration of similar gold deposits under complex geological conditions.