The recent development status of the sensors based on metallic photonic structures integrated onto end facets of fibers is reviewed. On the basis of the differences in schemes of plasmon resonances and detection principles of sensors, the above sensors are usually categorized into fiber sensors based on surface plasmon resonance (SPR), fiber sensors based on localized surface plasmon resonance (LSPR), fiber sensors based on hybrid plasmons, and fiber sensors based on surface-enhanced Raman scattering (SERS) effect. In addition, the fabrication techniques, photophysical principles, and detection performances of these kinds of sensors are summarized, compared, and concluded.