With the cross development of nanotechnology and new medical materials, many nano medical materials have been derived and applied in clinical diseases. The multifunctional nanocomposite hydrogel（MNH） has excellent performance in many different aspects due to the polymerization of nanoparticles with different characteristics in the hydrogel, and has become one of the current research hotspots. Due to its excellent tissue compatibility and stability, it is particularly suitable in the field of otology research, such as drug delivery in the middle ear and inner ear, optimization of cochlear implant technology, and ear tissue engineering. In recent years, many studies have successfully applied MNH to some key areas of otology and achieved good results. This paper will review the research status and application prospects of multifunctional nanocomposite hydrogels in some otology fields.