This paper mainly studies the preparation of a dye with fluorescence and antibacterial properties and its dyed textiles,and tests the fluorescence and antibacterial properties of textiles.It has been found that textiles dyed with NA-3 exhibit strong fluorescence intensity in water and high inhibition rates against Staphylococcus aureus and Escherichia coli,which further provides reference for the preparation of NA-3 dyes and the study of multifunctional textiles with fluorescent and antibacterial properties.