We　propose　a　site-bond　percolation　model　based　on　generating　function　method,　and　then　apply　it　to　four　representative　concrete　networks　to　observe　accuracy　of　its　estimates.　Finally,　we　discuss　causes　of　the　inaccuracy　and　give　simple　applications.　Our　site-bond　percolation　model　could　be　used　to　anticipate　the　connectivity　of　various　real　networks　after　site　and　bond　attack　and　study　their　entire　robustness.　Process　procedure　of　the　model　is　simple,　and　the　accuracy　of　its　estimates　is　acceptable　compared　with　that　calculated　with　the　message　passing　algorithm.　Meanwhile,　its　calculation　time　is　much　lower　than　that　of　the　information　passing　algorithm.　Therefore,　it　has　good　application　potential.　©　2022　Chinese　Nuclear　Society.