Since the introduction of the euro in 1999,the euro money market has been growing toward the integrated market where euro area financial institutions provide short-term funds for the parties need funding across the euro area countries by cross-border as well as domestic transactions.Through the market development of the integration,while the market in total showed a trading volume increase,qualitative developments significant in the money market segments with regard to the market structure and trading sophistications have been observed,which include preferences for secured based transactions,the growth of the repo market,evolutions of electronic trading platforms.This article is to review the decade of the euro money market development since the introduction of the euro and to discuss on the structural market evolution, the significant trends of the market and driving factors behinds the development before and after the financial turmoil in 2007,to identify urgent tasks ahead for functional enhancement of the euro money market.