The HEAT counter-attack projectile has the advantages of fast attack speed and small volume. It has a broad application prospect in the future anti-series warhead protection technology. In this paper, through theoretical analysis, ANSYS/LS-DYNA finite element numerical simulation, and the penetrating depth of a single HEAT counter-attack projectile. The results show that anti-series warhead of HEAT counter-attack projectile has certain feasibility and it is the further research direction of armor protection technology in the future.