This paper deals with the effect of type of auditor's opinion on the stability of dividend and free cash flow. The statistical sample included 102 companies listed in Tehran Stock Exchange(TSE) during the years 2012-2016. The required data have been collected from Compact CD of Rah Avard Novin and Codal. Data analysis has been performed using Eviews9 software. In the study, a multivariate regression model and panel data method were used. The type of auditor's opinion has been considered as independent variable and stability of dividend and free cash flow as dependent variables. In order to study the relationship between mentioned variables, two hypotheses were developed. The results show that there is a negative and significant relationship between the type of auditor's opinion and the stability of dividends, and there is a positive and significant relationship between the type of auditor's opinion and free cash flow.