Ink screen table cards, as a reusable and easy to update content display device, are increasingly favored by people. However, traditional ink screen table card control methods have limitations, such as requiring physical connections or local area network access. To address this issue, the paper introduces an ink screen table card control system based on Bluetooth technology. The system is based on the ESP32 microcontroller and utilizes its low-power Bluetooth function to achieve wireless connection with mobile devices. By developing corresponding mobile applications, users can easily update and remotely control the content of ink screen table cards. In addition, the hardware design and software development process of the system were detailed, and actual performance testing and evaluation were conducted. The results indicate that the proposed Bluetooth based control system not only improves the usability and flexibility of ink screen table cards, but also has good stability and safety, providing strong support for the promotion of ink screen technology in practical applications.