SMEs is the most active behavior in market economy, also it is an important impetus for the growth of national economy. In tax all Governments give preference and supported. In China, SMEs accounted for more than 90 percent of the total, realized the profit total 40%, provided jobs for urban jobs was the seven percent more. Small and medium-sized enterprises is important strength to promote our social economy well,sustainable development, and quickly,.However, due to the small anti-risk ability of the econo...