<p>The advancement of convergent technologies in the textile field is bridging the gap between connectivity and interactivity. This review highlights recent progress in the development of smart textiles utilizing polypyrrole (PPy), a widely studied conducting polymer. The synthesis and deposition techniques for PPy on fabrics, including in situ polymerization, screen printing, inkjet printing, spray coating, and dip coating, are critically discussed. Particular emphasis is placed on the interaction mechanisms between PPy and textile surfaces, which govern adhesion, durability, and wash stability. Surface modification strategies such as plasma treatment, polydopamine interlayers, and nanoparticle reinforcement are outlined as promising methods to enhance coating performance. Furthermore, the multifunctional applications of PPy-coated textiles are explored, including gas and mechanical sensors, pH monitoring, electromagnetic interference shielding, and antibacterial fabrics. This review also identifies current challenges particularly weak adhesion and poor washability and provides perspectives on future research directions for achieving durable, high-performance, and multifunctional smart textiles. </p> Graphical Abstract <p>Graphical representation of PPy synthesis, properties and application on cloth.</p> <p></p>