After the successful conclusion of Paris Climate Conference (COP21), countries are now attempting to identify implementation measures to address climate issues. In order to achieve the 2-degress target, human needs to make more efforts on mitigation measures to control atmospheric carbon concentration under 450 ppmv. Due to the different levels of economic development, countries, even for the different regions in China, have different local development pathways of low carbon technologies. Therefore, it is of great significance to study the evolution of economic development and energy technologies in multi-regions by establishing multi-region integrated assessment model (IAM). This article extends the WITCH model to a Global-Chinese multi-regional IAM model, named as WITCH-China, to study the evolution of Chinese multi-regional economic development,energy consumption and low-carbon energy technology development. This may provide useful insights for scholars and policy designers to forecast the future consumption pathways of low-carbon technologies of different regions in China,and contribute to the creation of strategic development plans related to the diffusion of carbon-free technologies throughout the world and China.