第三次修改专利法引入了现有技术抗辩原则,然而对于现有技术抗辩具体采用什么标准却没有给出明确的规定,学术界对此也存在多种观点。本文探讨了现有技术抗辩范围与创造性高度以及等同原则范围三者之间的关系,认为现有技术抗辩的范围应当采用相同侵权或者等同侵权的标准。 The third revision of the Patent Law introduced the principle of prior art defense, however, no specific rules were adopted for the existing technical defense. There are also many views on this issue in academia. This article explores the relationship between the range of prior art defense and the height of creativity and the scope of the equivalent principle. It considers that the scope of the existing technology defense should adopt the same standard of infringement or equal infringement.