According to a report of IMF, the golden age for public investment including infrastructure has come. However, ANBOUND think tank scholars hold the view that IMF's suggestion of stimulating economy by public investment is not applicable for China currently. Compared with developed countries, China needs to further improve its infrastructure. However, after the 4 trillion yuan worth stimulus, local governments are heavily in debt. Investment quickly grows to over 50% in economic structure and economic structure loses its balance. Driving economic growth by public investment is not a good method. In the future, China should drive investment by consumption. The transformation of Chinese economy also needs the development of consumption market.