Engineering is a “double-edged” sword. Apart from promoting human development, it also brought about various problems and risks to human society. Engineering risks have practical causes, as well as epistemological origins. From the perspective of engineering ethics, this article aims to find out the epistemological origins of engineering risks, which lies in the misleading conventional outlooks of engineering technology, including technology determinism, technology instrumentalism, utilitarianism view of engineering. In order to rectify the misleading concepts, this article suggests that China should constantly improve and development socialist outlook of engineering with Chinese characteristics, and instruct the engineering activities in China with the concept of “Green Development”.