As predicted,the global economy is stepping into a so called "biological economy" by 2020, which can be explained as economy mainly dominated by biological technologies. The essay discusses the proposition, definition, classification and characteristic of biological economy, also, the importance of positive view of happiness in a biological economy condition and the reason for emphasizing people's happiness achieving,and the definition of happiness philosophy. It also discusses which views of happiness should be recommended and how to practice a positive view of happiness in the scientific and technological circle in China.