Based　on　the　＂Civil　Reliability　Qualification　Standard＂,　＂Ancient　Wooden　Structure　Building　Maintenance　and　Strengthening　Technical　Specifications＂,　＂Wooden　Structure　Detection　Technology　Standards＂　and　weights　thought,　the　proposed　method　IRB　ancient　wooden　structure　building　safety　appraisal　and　evaluation　based　on.　The　study　recommended　that　determine　the　method　of　identifying　sub-unit　of　rating　criteria.　Using　this　method　it　is　located　in　the　courtyard　outside　the　West　qiniandian　bicyclic　Wan　Shouting　for　safety　assessment.　The　results　show　that　the　use　of　IRB　ancient　wooden　structure　building　safety　assessment　is　simple　and　feasible.　Compared　with　the　traditional　rating　method,　Rating　method　consider　the　structural　safety　of　the　contribution　of　different　attributes　as　well　as　the　contribution　of　different　components　of　the　same　component　security.(1)