Patent pre-warning is, by paying attention to and tracking the technical fields related to the business and products of enterprises, to collect and analyze patent information and market information in these fields comprehensively and continuously, learn competitors' trends, discover patent and other intellectual property threats from others in time as well as infringement upon patent and other IP rights owned by enterprises, give warning to decision-makers or R&D teams of enterprises, formulate response plan in advance to find out the precursors of possible patent disputes as early as possible, so as to prevent enterprises from being helpless when facing sudden patent disputes in the course of business operation.