This article exhibits a comprehensive in-depth exploration of the emerging domain of fibre optic sensors employing Localized Surface Plasma Resonance (LSPR) for the precise identification of a diverse array of biological, chemical and physical parameters. Applying fiber-optics on surface plasmon resonance (SPR) sensors is aimed at practical usability over conventional SPR sensors. Recently, field localization techniques using nanostructures or nanoparticles have been investigated on optical fibers for further sensitivity enhancement and significant.