A synchronous explosive circuit with the typical plate structure was put forward with the booster explosive containing 45% RDX,45% HMX and 10% energetic binder. The diameter of explosive particles were smaller than 100 nm. The key structural parameters of this explosive circuit are obtained by test and simulation as notch width 1.2 mm,and parent plate thickness 3.8 mm. The synchronization of the explosive circuit was theoretical analyzed. Results show that the maximum value of the synchronization error of eight output parts are less than 152.2 ns. The experimental verification show that the initiating bursting precision of the explosive circuit is about 170 ns,which meets the requirement of multi-mode warhead forming a good shape penetrator. The live projectile test show that the eight-point synchronous explosive circuit can form a jet warhead with a good shaping and relatively smaller lateral offset,which meets the operational requirement of the shaped charge warhead.