This paper examined an empirical investigation of whether financial development can boost economic growth in Tunisia. We used an Autoregressive Distributed Lag method to assess the finance-growth relation taking private credit, value traded and issuing bank's securities on the financial market as financial development indicators.The empirical results showed that the domestic credit to private sector has a positive effect on the economic growth suggesting that the financial development is a driver of a long term economic growth, but subject to a financial fragility at the short run. Moreover, this study confirmed the view of bidirectional relationship between credit and economic growth. However, we found that neither the stock market development nor the intervention of banks in the stock market had robust and positive effects on the economic growth. Thus, Tunisia is recommended to accelerate in priority the financial reforms of the Tunisian stock market in order to contribute to mobilize savings and promote long run economic growth.