<p>Freshwater salinization is an emerging global threat to aquatic ecosystems, with particularly severe impacts on non-halophyte aquatic macrophytes—key species for maintaining the stability of shallow waters. Despite growing concerns, a comprehensive understanding of research trends in this area has been lacking. To address this gap, we conducted a PRISMA-guided scientometric analysis to map the global scientific landscape on the effects of salinization on aquatic macrophytes. Our results reveal a consistent increase in publications since 1974, with the USA, China, and Australia leading in scientific output. Spain and Canada stood out in terms of international collaboration, while the USA, Australia, and India emerged as the most influential countries in the field. Submerged macrophytes are the most studied group, followed by emergent and floating species. The literature increasingly highlights the synergistic stress of salinization and climate change, with rising temperatures exacerbating salinity effects. These findings underscore the urgent need to understand how environmental stressors impact macrophyte communities and provide valuable guidance for future research, conservation planning, and policy-making.</p>