Since the 1950s, the need for the dialogue between economics and ethics has increasingly emerged and has attracted academic attention in the west. After the market-oriented reform in the 1970s, economics and ethics in contemporary China continue to tear. This paper attempts to start the dialogue with mutual understanding between these two disciplines. From a perspective of the history of thought, a meditation on the tension between economic and ethical issues in modern economics results from moral sensitivity in the pursuit of the good life with freedom and equality. Advanced by special historical background, cautious attitude of thinkers and the changes in the methodology of social sciences, modern economics is gradually separating from ethics. However, owing to current technology restrictions, economic theories and ethics still have complex relationship, and the analytical mode of binary opposition between economics & ethics and public discussion based on this analytical mode are faced with several problems. Finally it makes a comparison by taking the ownership as an example.