The database of ChinaMu mutant database has been updated. The number of insertion sites in the V4 version database is 108,994, covering 27,957 genes, and the materials available for distribution in the database currently include 98,363 insertion sites. A total of 104,294 insertion sites were put into the database of V5, covering 25,948 genes, and the materials available for distribution in the database currently include 93,115 insertion sites.