In order to improve the effectiveness of coastal defense artillery’s attack on the sea, the unmanned rocket weapon system of coastal defense artillery’s detection and firing was discussed. Based on the military requirements, this paper analyzes the unmanned rocket weapon system integrated with detection and firing, and summarizes its mission. According to the mission task, the detection and firing integrated unmanned rocket weapon system with detection unit, command and control unit and fire unit as the main body is conceived, the composition form of the system is determined, and the deployment mode and use mode of the system are described. The results show that the successful application of the future detection and firing integrated unmanned rocket weapon system will realize the overall leap of the coastal defense artillery’s ability to attack the sea.