The current dashboard system is limited in communication capability. This study proposed a digital twin dashboard system framework. To realize the digital-twin-based dashboard system, for the field application of this research laboratory, a simple contract net-based communication protocol is designed to realize a dashboard system with communication capabilities. The digital twin-based dashboard system is successfully implemented in a flexible GPU card assembly line. Enabling each digital twin module system to interact and operate flexibly to demonstrate the relationship between the digital twins and the physical modules.