Objective To examine the expression of MMP -2 and HSP70 in salivary tumor and to explore the relationship among the expression of MMP -2 and HSP70 and the biological of the salivary tumor. Methods The expression of MMP -2 and HSP70 on 38 salivary tumor patients and controls was detected by immunohistochemistry. The data was disposed by SPSS software. Results The expression of MMP -2 and HSP70 in salivary tumor was higher than that in normal controls(P