Trade competitiveness index, TC index can reflect the competitiveness of a country's products in the international market, the index is close to the competitiveness of a stronger, equal to 1 said the industry only not to export import; the more close to - 1 competitiveness weaker, equal to 1 said the industry only import export; equal to 0 when said the industry competitiveness in the middle level. This paper will analyze the impact of the financial crisis on the competitiveness of the main machine tools through the TC index.

         From the point of view of the large class, machine tools, respectively, metal processing machine and machine tool accessories, high-end CNC equipment, testing equipment, molds, tools, tools, four types of parts and components.
In the field of metal processing machine tools, Japan's trade competitiveness of the strongest, TC index basically in 0.8 or more, in 2009 declined, and then continued to rise, the current basic in about 0.9. The impact of the financial crisis on the trade competitiveness of German metal processing machine tool is not, in 2009 the TC index reached 0.53, the current basically maintained at more than 0.5, 0.1 points higher than the pre crisis. U.S. metal processing machine tool trade competitiveness in the post crisis has increased, the 2010 TC index was -0.07, but in 2011 after a substantial increase in imports, TC index again lower. China's trade competitiveness of metal processing machine tools by the adverse impact of the financial crisis, from 2009 after continuing to decline, has been close to -0.7.

         In terms of machine tool accessories, 2007 in Germany and Japan trade competitiveness quite, but post crisis Germany luffing little, Japan continued to grow, in 2011 by the economic downturn affecting TC index slightly lower, then again. U.S. machine tool accessories trade competitiveness also increased after the crisis, but in 2010 due to the import demand, the TC index fell straight, has fallen below zero. And in 2008, China's machine tool annex TC index reached almost zero line, but by the impact of the financial crisis, then a substantial decline in 2011 reached the lowest point of -0.36, a slight rebound in 2012, but still about -0.3.

          In the mold, tool and cutter, Germany's trade competitiveness showed little change, TC index basic at about 0.35, and Japan after the crisis reached a maximum value of 0.73; trade competitiveness of the United States in the post crisis sharply lower; the TC index have been from -0.26 in 2007 rose to 0.02 of 2012, trade competitiveness greatly improved.
In test equipment, Germany and Japan's trade competitiveness has been comparable; the United States in crisis after the TC index has improved, declined slightly in 2010, now basically stable; test equipment for China's trade competitiveness is gradually improving, from 2007 nearly 0.7 rose to 2012 - 0.5 around.

         In high-end CNC device, the trade competitiveness of German products strong, TC index close to 0.7, Japan in about 0.4 and continue to decline; American trade competitiveness changed little; and Chinese high-grade numerical control device in the post crisis trade competitiveness of substantial growth, TC index from 2007 - 0.3 rose to 0.04 in 2012 and 2012 in the reduction of import export increase.