摘要： For sensors based on electromagnetic resonance whether surface plasmon resonance (SPR) or localized surface plasmon resonance (LSPR), enhancing the light-matter interactions is the most critical and important way to improve the performance of sensors. Plasmonic nano-arrays is a kind of periodic metal or dielectric nanostructure formed by nanofabrication technology and it can effectively enhance the light-matter interactions by tuning structural parameters to excite different optical effects due to its ultra-high degree of freedom. At the same time, a plug-and-play, remote micro sensor suitable for limited environments (such as in vivo) may be realized due to the rise of lab-on-fiber technology and the progress of nanofabrication technology for unconventional substrates (such as optical fiber tip). In this paper, the advantages and disadvantages of different nanofabrication technologies are briefly introduced and compared firstly, and then the applications of optical fiber sensors (OFS) based on different plasmonic nano-arrays are reviewed. Plasmonic nano-arrays OFS are divided into two categories: one is the refractive index sensor based on the sensitivity of the array to the surrounding environment; the other is the surface enhanced Raman scattering (SERS) sensor based on the enhancement ability of the local electric field around the array. In this review, the present sensors are compared and analyzed from aspects of the geometry, material and dimension of plasmonic nano-arrays and the main research directions and progress are summarized. Finally, the future development trend is proposed.