Abstract: A tandem follow-through warhead was designed. The experiments of the tandem warhead penetrating concrete target at different impacting velocities and different impacting angles were carried out by using smoothbore gun with a diameter of 100 mm. Experimental results show that the forward shaped-charge warhead penetrates a hole in the target firstly and the follow-through warhead continues to penetrate the target along the hole. Efficiency of the tandem follow-through penetrating targets is improved， especially at small impacting angle.