Rhodamine-based photoresponsive sensors have emerged as a focal point in the realm of chemical sensing garnering substantial attention owing to their exceptional sensitivity, straightforward implementation, and real-time detection capabilities across diverse analytes. Within this class, a notable substituent stands out for its well-established reputation, characterized by its electron-donating prowess and customizable coordination cavity resulting in a heightened sensitivity towards various metal ions. The comprehensive examination of these sensors in the review centers on key parameters such as the detection target, detection limit, detection solution system, and detection method. Notably, the inclusion of an array of metal ions in the discussion contributes to the versatility of these sensors. This strategic approach not only broadens the scope of application but also underscores the versatility of rhodamine-based sensors, making this book a valuable resource for researchers and practitioners in the field of chemical sensing.