Abstract: An agent-based coordination control system for spot welding flexible manufacturing system is introduced.The system is composed of an industrial computer with the multi-agent system,a spot welding robot,three automatic jigs,welding power and other peripheral devices.For the spot welding flexible manufacturing system muhi-agents systems,including the planning and task management,the communication control and the others assigned to the devices are developed.In this multi-agent system the blackboard struturcs and negotiation coordination mechanism to allocate and monitor the resource are used.At last we present the simulation for this system.