Abstract:The individual 3D printing behavior of ordinary consumer has challenged the current patent infringement regulation in a unprecedented manner.However,the doctrines of the solution to the problem nowadays are quiet different in our nation.Therefore,from the point of claim on patent quality,we can amend the constitutive conditions of patent infringement liability based on the principles of balancing of interests and right limit.Specifically,it is appropriate that changing the ‘for the purpose of production and business operation’ to the ‘for the purpose of profit-making’ concerning constitute elements of patent infringement and applying the rule of ‘fair use’ properly at the same time.In this case,the protection of patent right can strengthen accordingly in order to cope with the impact on patent protection due to 3D printing technology.Meanwhile,the protection of patent right will be limited to a reasonable range so that the legitimate interests of the public can be protected properly and the social demand for high quality patents can be meet well.