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Objective: To investigate the expression of matrix metalloproteinase-1 (MMP-1), E26 transformation-specific-1 (Ets-1) in laryngeal carcinoma and to discuss their relevance and the roles in carcinogenesis and development of laryngeal carcinoma., Method: Immunohistochemical technique was used to detect the expression of MMP-1 and Ets-1 protein in 34 tissues of laryngeal carcinoma and 34 para-carcinoma tissues, 15 cases of vocal cord polyps, and the use of the pathological image analysis software, we analysis the results of immunohistochemical semi-quantitatively., Result: (1) The expression of MMP-1 and Ets-1 protein in laryngeal carcinoma tissues is obviously higher than that in para-carcinoma and in vocal cord polyps respectively (P < 0.05). There is no significant difference between the expression of para-carcinoma and vocal cord polyps(P > 0.05). (2) The expression of MMP-1, Ets-1 protein isn't related to patients' age and sex, tumor size,clinical classification (P > 0.05), but related to pathological grade, clinical stage and lymph nodes metastasis (P < 0.05). (3) There is a positive correlation between the expression of MMP-1 and Ets-1 in laryngeal carcinoma., Conclusion: Overexpression of MMP-1 and Ets-1 was observed in laryngeal carcinoma. The high expression of MMP-1 and Ets-1 may contribute to the carcinogenesis and development of laryngeal carcinoma,which is a important value to judge the malignant degree and progress of laryngeal carcinoma.