Objective To investigate the effect of voice training on the recovery of voice function, the voice training method was applied after plasma radiofrequency ablation of early-stage glottic carcinoma. Methods Sixty patients with early-stage glottic carcinoma admitted to department of otorhinolaryngology head and neck surgery，hongqi hospital affiliated to mudanjiang medical university from January 2019 to December 2020 were selected by standardized criteria. All patients were treated with low-temperature plasma radiofrequency ablation under supported laryngoscope, who were randomly divided into two groups. Patients in the training group received voice training for 3 months after 2 weeks of surgery. The control group only had regular review after operation. Patients in both groups were reviewed by electronic laryngoscopy. And the subjective and objective voice conditions were evaluated respectively. Results There was no statistical significance in preoperative subjective and objective voice indicators between two groups (P>0.05). The subjective evaluation indexes of voice Disorder index (VHI), total hoarseness (G), roughness (R) and breath degree (B) in the subjective evaluation of CRBAS, as well as the objective evaluation indexes of fundamental frequency (F0), fundamental frequency perturbation (Jitter), amplitude perturbation (Shimmer) and harmonic noise ratio (HNR)at 3 months of post-operation. The subjective evaluation indexes of the training group were lower than those of the control group, and the differences were statistically significant (P<0.05). The mean values of F0 and HNR in the training group were better than those in the control group, but there was no significant statistical significance (P>0.05). Conclusion Voice training combined with cryogenic plasma radiofrequency for early-stage glottic laryngeal cancer can promote early recovery of voice function in patients, which is worthy of clinical application.