Analyzing　percolation　rules　of　real　networks　has　some　great　realistic　significance.　In　this　paper,　we　develop　a　relatively　simple　model　based　on　generating　function　method　to　study　percolation　properties　of　real　networks.　We　construct　our　model　for　both　site　and　bond　percolation,　compare　its　estimates　with　those　of　the　message　passing　algorithm　and　simulation　results　on　computer-generated　networks　as　well　as　practical　networks,　and　discuss　causes　of　the　inaccuracy.　The　conclusions　show　that　the　accuracy　of　our　model　could　be　accepted　though　it　is　lower　than　that　of　the　message　passing　algorithm　and　the　discrepancies　between　the　estimates　of　our　model　and　the　simulation　values　mainly　come　from　the　disagreement　of　those　real　networks　with　the　model　hypotheses.　(C)　2017　Elsevier　B.V.　All　rights　reserved.