The Shenzhen-Hong Kong International Service City orientation system, located in Qianhai, Shenzhen, is part of the "ideal city" experiment in Shenzhen-Hong Kong cooperation. Its design aims to enhance the image of an international neighborhood by providing multilingual interaction and round-the-clock information services, while reserving modular space for urban development. The background is based on Mama Bay's important positioning as a Shenzhen-Hong Kong international service city and its ambitions in industrial upgrading, ecological city construction, and international services.The signage system adopts intelligent navigation technology, combined with a multilingual interactive interface, to provide round-the-clock information services. Meanwhile, the modular space design reserved for development reflects forward-looking considerations for new technologies and applications, such as the potential integration of AI guided tours and augmented reality (AR) information displays in the future.The signage system focuses on user experience, ensuring that people from different backgrounds can easily use it through clear information hierarchy and multilingual support. Meanwhile, considering the efficient urban pace of Mama Bay, the signage design lights up with warm yellow light in the twilight, providing pedestrians with a cozy guidance and reflecting humanistic care for safety and health.The design of the signage system fully takes environmental protection into account, selecting low-energy and long-life LED lighting equipment to reduce energy consumption. Meanwhile, in terms of material selection, a preference is given to recyclable or eco-friendly materials to minimize environmental impact. In addition, the modular design facilitates maintenance and updates, reducing material waste and environmental pollution caused by frequent replacements.