Companies require finance resources to perform their activities and the resources would be provided through releasing ordinary and preferred stock to investors and borrowing or get loans from creditors. Some theories have addressed the issue that why firms choose a particular method of financing and what impact such choices would have on the firm performance. Using regression model and correlation analysis, the study has dealt with to examine the relationship between the size and type of financing by four performance measures of, rate of return on investment (ROI), financial efficiency of an organization, rate of return on equity (ROE), and the liquidity of Pegah Company of Isfahan during 1379 to 1392. Results of this study similar other local studies showed that except Equity method in this company, that has significant and positive relationship with rate of return on equity, other Equity methods don’t have significant relationship with Performance measures.