In order to improve the damage probability of linear explosive shaped projectile, a new warhead structure is proposed. Nonlinear finite element software was used to complete the numerical simulation of the warhead under explosion load. The result shows that the warhead can achieve the expected result and form the linear explosive shaped projectile with a certain speed on four directions to realize circumferential damage and has a certain effect in dealing with shield net, electrical wall, vehicles, etc. The research result can provide a new option for structure study on the linear shaped charge.