In response to the demand for the intelligence of ammunition systems and the integration of onboard computers, a design scheme for an integrated onboard computer architecture based on intelligent processors has been proposed. The integrated onboard computer can utilize intelligent modules to perform smart recognition of image data transmitted from the guidance head and can control various systems on the projectile through an information processing module. This design makes full use of various processor resources, creating a robust hardware architecture support platform for high-speed real-time large-capacity data processing, complex algorithms, and data transmission on the projectile. By employing a parallel software design strategy within a layered architecture, system computation tasks are evenly mapped to different processors, thereby achieving the goal of multi-task real-time parallel processing. The final prototype test results indicate that the integrated architecture design is reasonable, carrying significant military implications and engineering application value.