<p>Based on year-long mooring observations (January–December 2013) near the Xisha Islands in the northwestern South China Sea, this study investigates the characteristics of typhoon-induced near-inertial waves (NIWs) during three events (typhoons Wutip, Nari, and Haiyan). The influence of mesoscale eddies on NIWs and the interaction between NIWs and internal tides (ITs) were analyzed. Notably, near-inertial kinetic energy (NIKE) increased significantly following typhoon Haiyan, reaching a peak value of 40.60 J/m³, the highest recorded NIKE in 2013. This value was approximately threefold and fivefold larger than those generated by typhoons Wutip and Nari, respectively. NIKE generated by all three typhoons exhibited downward radiation. Power spectral analysis revealed significant frequency shifts in NIWs during each typhoon, with shifts linked to mesoscale eddies present at the observation site. Additionally, bicoherence analysis reveals that the <i>fD</i>₁ (<i>f</i> + <i>D</i>₁) and <i>D</i>₂ − <i>f</i> waves (where <i>f</i> is the local inertial frequency, and <i>D</i>₁ and <i>D</i>₂ denote the frequencies of diurnal and semidiurnal ITs, respectively) in the power spectrum originate from the nonlinear interactions between NIWs and ITs during typhoons Wutip and Haiyan. Temporal analysis of kinetic energy and shear showed that the enhancement of nonlinear coupling between NIWs and ITs was primarily driven by the strong NIWs with strong vertical shear. This study provides valuable insights into the generation, propagation, and interaction of NIWs and ITs, contributing to a deeper understanding of ocean mixing processes in response to different typhoon conditions.</p>