In this study, specimens composed of high-strength 316L-CuSn10 multimaterial were fabricated utilizing the laser selective melting technique. An interrupted interlaminar scanning strategy, implemented at interfacial junctions for durations of either 30 seconds or 60 seconds, was employed. The influence of varying interruption times on interfacial bonding properties was systematically examined. The empirical findings revealed that the interrupted interlayer scanning strategy effectively widened the bonding layer at the steel-copper interface. Additionally, it facilitated elemental intercalation at the interface, leading to a reduction in micro-zonation compositional differences. Consequently, metallurgical bonding at the interface was notably augmented. The ultimate tensile strength of specimens subjected to the 30-second interruption scanning strategy reached an impressive 501.0 MPa±27.4 MPa, while the bending strength peaked at 1 013.1 MPa. These values demonstrated a substantial improvement compared to the strength of single-material specimens. The tensile fracture analysis indicated a mixed fracture mode at the interface transition zone, combining both ductile and brittle fracture characteristics. The intermittent scanning strategy represents an innovative approach for shaping multi-material components with diverse performance attributes and achieving high-quality outcomes. This research contributes valuable insights into advancing the fabrication of materials with enhanced mechanical properties.