The importance of risk become enhance suddenly after financial crisis. Different initiatives have been taken to develop proper management approach. Enterprise risk management is one of advance approach use by most of multinational firm to management risk. This paper tries to find out relationship between ERM and firm value. There is no proper determinant to measure ERM but most of researches have been used Chief risk office appointment as determinant of ERM. We use survey responses as measure of ERM. We send online questionnaire to 130 firms register in Istanbul stock exchange. We used Tobin's Q as measure of firm value. Our finding shows that there is no relationship between ERM and firm value but there is negative significant relationship between firm value and leverage. Our result also shows that ERM performing firms has less variation in long term debt.