On October 24-25, the "China Technology Economic Forum 2009 - Nanjing" which was based on a technical and economic perspective was held in NJUT. The forum was hosted by the Institute of Quantitative and Technical Economics, Chinese Academy of Social Sciences, the Management School of Tsinghua University, and the Economics and Business Administration School of Chongqing University. The forum conference received more than one hundred papers, and hundreds of representatives from dozens of universities and enterprises attended the forum. All the papers submitted to the forum will be published in the book "The Technological Economy in the 21 century".