||Recently, the recognition of fluoride anion is exceedingly desirable due to the importance of this anion in dental heath and its possible toxicity when administered in high doses. Because of their inherent fluorophilicity, organoboron compounds have often been considered for the complexation of F-. In many studies, conjugated polymers are widely used which have remarkable efficiency in weak signal because of π-π* transitions of π-conjugated property. But generally, conjugated polymers have poor solubility arising from a hydrophobic and rigid backbone. Therefore, we have introduced water-soluble sulfonate groups in the side chain of polymer and fluorophilic organoboron in polymer backbone.