The formability of EFP(Explosively Formed Projectile) in multi-functional warhead scheme was analyzed by using AUTODYN simulation software. Compared with the traditional layout program, the changed fragment scheme changes the deformation process of shaped charge liner and leads to the shape variation of EFP, thus reducing the penetrating performance. Through analyzing the structural parameters, the optimized solution was proposed to solve the shaping problem of EFP after the adjustment of fragment scheme.