Aiming at the hidden danger and filling quality inconsistency of manual filling, the precision explosive network automatic filling device is developed. Recognized filling path according to design map of network baseboard, introduce the device composition and function, introduce the process flow diagram, use 1 input and 2 output explosive network for synchronization testing. The test results show that the explosive network filled by the device has great output synchronization. It can improve the filling procedure safety, filling quality and damage power of aimed warhead.