This study is focus on the target as convention tank, to simulate and calculate the single tank model, actual tank model in combat, as well as the deployed targets in testing and verification test phase, respectively. The hit probability of sub-munitions with guidance was relative higher for the small size target. The simulation results are laid a foundation for the forward analyzing the effectiveness for enhanced weapon system, firing distribution as well as normalizing the utilization the weapon system, and it is also provided the valuable reference to study the hit probability in the case of simulation for other similarity guided terminal sensing ammunition.