Sensitivity to treatment-related changes in tinnitus severity using the Chinese version of Tinnitus Functional Index (TFI-CH) should be further investigated in the mainland Chinese population and for a fixed, well-controlled intervention (repetitive transcranial magnetic stimulation). Good agreement was observed between visual analog scale (VAS) and TFI-CH total scores before and after treatment, with both measures showing significantly reduced after treatment (both p < 0.001). There was good agreement between the response rates to the intervention between the VAS and TFI-CH total scores. The TFI-CH emotional subscale contributed most strongly to overall tinnitus severity, and the reduction in severity was best predicted by emotional benefit. The TFI-CH is suitable to evaluate treatment-related changes in Chinese tinnitus patients.