Intelligent upgrading method for home gateway

The invention relates to a software upgrading technology, discloses an intelligent upgrading method for a home gateway, and solves the problems of low efficiency and high error rate caused by manual configuration recovery when database versions are inconsistent in a traditional upgrading mode and abnormal partial functions possibly caused by direct upgrading when a new version and an old version are greatly different. In the scheme, the home gateway is restarted to enter an initialization stage after being upgraded, whether a user configuration database is consistent with a database version in new version software is verified in the initialization stage, and if not, a special upgrading process is triggered, namely user configuration information is extracted and stored as a universal configuration file, and a recovery mark file is generated; after a recovery mark file is detected in the initialization stage, a configuration recovery mechanism is triggered, user configuration information of the general configur