Abstract: With the development of missile weapon systems for intelligence and clustering, cluster systems with many functions, such as multimissile coordination and multimissile salvo, are increasingly being used in combat. Traditional single-missile hardware-in-the-loop simulation can no longer meet the simulation requirements of multimissile collaborative systems. To satisfy the requirements of multimissile simulation, single missile technology should be changed. Based on image-injected combat-scene generation technology, this study designs a hardware-in-the-loop simulation system that considers a multimissile salvo. It also designs a multimissile cooperative combat scenario based on image injection combat-scene generation technology, and forwards the real-time generated combat scene to the image simulator and seeker to ensure that the scene is consistent with that injected into the seeker in time and space. The analysis of three actual missile simulations in different range results shows that the system is stable and reliable. It not only satisfies the needs of multimissile salvo simulation, but also provides the full-process verification of the control system and combat command system of the multiprojectile salvo weapon system.