Engineering is a "double-edged sword". Apart from promoting human development, it has also brought about multiple problems and risks to the society. From the perspective of engineering ethics, the article aims to analyze the causes of engineering risks which mainly include the unpredictability of future, the lacked sense of responsibility among engineering participants and the divergence of risk perception. In order to avoid engineering risks in a comprehensive way, the article suggests three countermeasures which are namely cultivating the awareness of ethic and responsibility among engineers, establishing codes of engineering ethics by Association of Engineers and risk data bank, as well as safeguarding the public's rights to be informed in order to promote active participation.
