In Germany, Big-Data is frequently associated with Industry 4.0. With regard to China, some publications focused upon the legal and ethical issues of the so-called social credit system, but offered little overview concerning the general aspects of Big-Data. This paper aims to deliver a more comprehensive outline of the Big-Data developments, which have been observed for the last seven years in China. In particular, the contribution delineates the application scenarios and governmental politics related to Big-Data and further deepens the insights by providing two concise case studies, one on mechanical engineering manufacturers and the other on Big-Data activities in the province of Guizhou. At the economic level, this article compares the recent Big-Data revenues in Germany and China.