On the afternoon of July 5th, “learning activity of district committee theory learning center” organized by Dongli district was successfully hosted in the No. 100 Middle School in Tianjing. The learning activity was conducted by the District Committee Secretary Xiaxin, and participated by all district level leaders, department level leaders and more than 300 enterprise leaders. The president of GEI Wang Delu was invited to carry out a training session on the topic of “The mechanism path of promoting the replacement of old growth drivers with new ones in the new economic era”. Deriving from the pattern and characteristics of new economic development, the three major methodology systems of the new economic ecology theory, the new economic opportunity theory and the enterprise explosive growth theory are introduced.