The　occurrence　of　safety　incidents　for　existing　glass　curtain　walls　(EGCWs)　pronounced　menace　to　the　security　of　both　lives　and　property.　Undertaking　safety　assessment　for　EGCWs　carries　essential　practical　significance.　However,　current　fuzzy　evaluation　methods　overlook　the　uncertainty　of　indicator　weights　and　the　intricacies　of　rank　attribution.　In　response,　this　paper　proposes　a　novel　approach　to　the　safety　assessment　of　EGCWs.　This　research　establishes　a　framework　of　evaluation　indicators　for　EGCWs　and　divides　the　safety　ranks　of　each　indicator　into　four　tiers:　Safe,　Mild　risk,　Moderate　risk,　and　High　risk.　Quantitative　and　qualitative　indicators　are　quantified　via　the　variable　fuzzy　cloud　algorithm　and　cloud　model.　The　information　cloud　combination　weighting　method　is　introduced　to　determine　the　weight　clouds　of　indicators.　Finally,　a　two-dimensional　assessment　result　is　derived　using　an　improved　fuzzy　comprehensive　evaluation　method　and　fuzzy　entropy.　The　exemplified　outcomes　demonstrate　that　this　approach　captures　the　safety　status　of　evaluation　subjects　based　on　risk　ranks,　and　fuzzy　entropy　addresses　two　issues:　inconsistent　level　attribution　and　the　comparison　of　identical　risk　ranks.　The　appraisal　method　further　unveils　the　safety　details　of　EGCWs,　with　findings　that　align　consistently　with　the　actual　situation.　©　2024　–　IOS　Press.　All　rights　reserved.