One of the most important and determinant factors in economic growth and glory is capital account and investment inside of economy and in its pursuant, there is the financial markets and its importance impress in economy efficiency and effectiveness. In sight of economists, capital account and investment are acting the main role inside economy, so attention and investigating to this importance could be very big step on growth and glory of economy. The financial market`s affects are appreciated in a time that, the capitals need to be managed and conducted, and in its pursuant they need to have economic efficiency. In permanent economic growth and economic development, we are dealing with several principles in the areas of financial markets that playing an important role in economic development by financial markets and being financial markets served up in industry, are known as the most important principles. By these describes, the financial market as itself is detected as the most influential factor in economy`s mature. The purpose of this essay is that, after providing useful information in plain language to the readers about financial markets, assess the relevance and impact of financial markets on how to grow and mature in economy.