Objective: To study p27/Kipl expression in gliomas and its application value. Methods: Imo munohistochemical technique was used to detect the exprssion of p27/Kipl gene in 48 different malignant grade human brain glioma tissues categorized according to WHO classification and 12 normal human brain tissues,which were analyzed quantitatively by using the image system and compared retrospectively with the patients' clinical characteristics. Results: In this series, the immunohistochemical reaction for p27/Kipl was confined to the nuclei. The abnormal positive expression rate of p27/Kipl in gliomas was found to be higher than that in normal tissues (P〈0.05). The positive nuclei expression of p27/Kipl decreased in number and staining intensity with the increasing degree of histological malignancy (P〈0.05). Lower expression of p27/Kipl was associated with poor prognosis (P〈0.05). P27/Kipl expression could be regarded as an independent prognostic factor. Conclusion: The abnormal expression of p27/Kipl may be closely related to the occurrence and development of gliomas, and also can be used to evaluate the prognosis independently.