This study provides evidence for the relationship between working capital management and cash holding companies listed in Tehran Stock Exchange. To test the relationship between working capital management and cash holding used multiple linear regressions. For this study, 16 variables were used and three hypotheses were formulated. The sample consisted of 45 firms during the period 2005 to 2011 is 6 years old (in terms of number was of observations 270).Results indicated that, "The Days of the Sale of Inventory (DSI) with cash holding had not significant relationship" and also "The Days of Sales (DOS) with cash holding had not with the significant relationship". "The Days accounts Payable (DPO) with cash holding had relationship weak significant. The study also examined other variables, and the results show Opportunities for future growth, cash flow ratio, ratio accounts receivable to total assets, and accounts payable to total assets ratio of cash holding direct relationship, but a weak significant relationship exists and the linear relationship (direct voltage) exists. "And the maturity date of the debt is inversely relationship with cash holding. Between variables, firm size, financial distress, financial leverage, debt to banks, cash assets, the ratio of in ventory to total assets, cash conversion cycle, there was no relationship with cash holding.