Purpose. Results of treatment of locally advanced larynx cancer T3-4No-4 are unsatisfi ed. The aim of study is analysis of risk factors. Methods and Materials. 112 patiens with larynx cancer after radical surgical treatment had postoperative radiotherapy (conventional or accelarated). Results. The 3-year overall survival (OS) was 58%. Margin status and numer of risk factors had impast on OS. The 3-year locoregional control (LRC) was 80%. Number of risk factors, level of hemoglobin, overall tratment time and dose were signifi cantly associated with LRC. Incidence of distant metastases was asssociated with G3 suamous cell carcinoma and index of nalignancy H. Glanz.