In 2012, China's construction machinery market was in weak demand, stabilize expectations repeatedly postponed. According to the China Construction Machinery Industry Association, the key linkages 13 large enterprise groups, the preliminary statistics showed that from January to November 2012, operating income fell 2.79%, gross profit fell 31.3%. Meanwhile, mining machinery, earth moving machinery, road and compaction machinery and engineering machinery, crane and lifting machinery sales fell more than 20% rate, only concrete machinery, pneumatic tools had slight increase. On the other hand, the blind pursuit of market share, caused disorderly competition in the market, sales threshold decreased, resulting in a new machine inventory, and, used construction machinery market incremental rise significantly.