From the qualification point of view, there are price firms, accounting firms, asset evaluation centers and so on, they can do patent evaluation. However, at present, these appraisal organizations do not have the technical ability to assess intangible assets. They can't make accurate identification of the technical reliability, technical content, market value of the technology, etc., so they can't make the real value appraisal. Personal opinion, the assessment of patents, it is best to entrust the relevant information institutions (such as the Science and Technology Information Bureau) to organize experts on the patent on the technical reliability, feasibility, technical content, technical value, etc., by their own organization of professionals to analyze and justify the data they need, and then entrusted to the relevant statutory assessment bodies to report the conclusions of the report, and to obtain the form of lawfulness.