The　Count　Compatible　Pattern　Run-Length　(CCPRL)　coding　compression　method　is　proposed　to　further　improve　the　compression　ratio.　Firstly,　a　segment　of　pattern　in　the　test　set　is　retained.　Secondly,　don＇t-care　bits　are　filled　so　as　to　make　subsequent　patterns　compatible　with　the　retained　pattern　for　as　many　times　as　possible　until　it　can　no　longer　be　made　compatible.　Thirdly,　the　compatible　patterns　are　represented　by　symbol　＂0＂　(equal)　and　symbol　＂1＂　(contrary)　in　the　codeword.　In　addition,　the　number　of　consecutive　compatible　patterns　is　counted　and　expanded　into　binary　which　indicates　when　the　codeword　ends.　At　last,　the　six　largest　ISCAS＇89　benchmark　circuits　verify　the　proposed　method,　the　experimental　results　show　that　the　average　compression　ratio　achieved　is　up　to　71.73　%.