Whether scientific and technological ethics can become a subject has not been reached the consensus in academic circle,the endorsed scholars believe that because science can be abused,if a great power was abused,it would bring damage to human beings,thus from then on,scientific ethics has become a topic,however,the opposed scholars believe that the reason for existence of scientific ethics is all based on rumors and that scientific ethics is only a shelter which is used by religious power which fights against science to conceal its original feature of fundamentalism.The author holds that if someone hopes that scientific and technological ethics exists,he must define the research object of the scientific and technological ethics and the basic scope of the responsibility outlook of the scientific and technological ethics.