Both Marxist political economy and western economics take capitalist market economy as the study object The former regards market economy as an organism, while the latter regards market economy as a mechanism These two kinds of economics are two different paradigms and two different discourse systems At present, Chinese Economics is the socialist market economics of China, which adapts to the needs of the development of the socialist market economy with Chinese characteristics Chinese Economics should not only study the problem of “where to come from”and “where to go”of socialist market economy, but also study the problem of “how to run the market economy” The operation principle of market economy is the intersection of Chinese and Western Economics In the new era, we should implement“elimination”, “transformation” and “transplantation” techniques on western economics, and“Chinize”it, so that it can be used correctly in the study of China's socialist market economy, serve for China's Economic modernization and development, and serve for the establishment and development of China's Economics