The present study involved the fabrication of Al-B4C/Al laminated composites with a strong bonding interface using an integrated (or one-step) hot-pressed sintering method followed by hot rolling. A comprehensive analysis of the mechanical properties and interface behavior of Al-B4C/Al laminated composites under various loading conditions, particularly focusing on ballistic impact. Findings indicate that the laminated composite exhibits a high-strength interface bonding (greater than 318 MPa) facilitated by the continuous Al matrix, with no interlayer delamination occurring even after Charpy impact failure and ballistic penetration. The integrated interface promotes coordinate deformation between different component layers, enhancing the comprehensive mechanical performance of the Al-B4C/Al laminated composites. Moreover, the integrate interface of the Al-B4C/Al laminated plate enables a higher absorption of impact energy from projectiles, increasing by 10% and 70% compared to the monolithic and unbonded stacked plates, respectively.