Recently, the research group successfully constructed a novel 1,8-oxygenated pyrrole-based electrochromic fluorescent supramolecular hyperbranched polymer (EFSPs) through the coordination of a tridentate pyridine ligand with Eu3+ ions. The resulting polymer exhibits tunable multicolor fluorescence and excellent electrochromic properties, making it suitable for anti-counterfeiting inks. Initially, the group designed and synthesized two monomers, M1 (with the tridentate pyridine ligand linked to the 2- and 7-positions of 1,8-oxygenated pyrrole) and M2 (with the tridentate pyridine ligand connected to the 1-, 3-, and 5-positions of the benzene ring via a flexible chain). EFSPs were prepared by the coordination of M1 and M2 with Eu3+ ions using a dual-monomer approach. By adjusting the ratio of M1 and M2, the fluorescence color of EFSPs can be tuned from blue to red, including a white fluorescence region. Under the stimulation of positive and negative voltages, the oxidation-reduction reactions of the 1,8-oxygenated pyrrole units in EFSPs lead to changes in fluorescence color. Based on the electrochromic fluorescence properties of EFSPs, the research group used them as anti-counterfeiting inks to create a multicolored anti-counterfeiting pattern on paper. When subjected to an electric current, the fluorescence color of the anti-counterfeiting pattern changes, providing a novel solution in the field of fluorescent anti-counterfeiting.