Abstract: Abstract: 【Objective】 The members of the AaBES1 gene family were identified from the Artemisia argyi Genome-wide data. Their physicochemical properties, promoter elements, phylogenetic relationships and expressions pattern were analyzed to study the expression characteristics of the AaBES1 geng family. 【Methods】 Bioinformatics analysis was performed on the AaBES1 family using online analysis software. The transcriptome data were used to determine the expression level of each member in response to saline-alkali stress. Real-time quantitative PCR (qRT-PCR) was used to detect the expression patterns of AaBES1 members in different tissues and hormone treatments of A. argyi. 【Results】 A total of fourteen BES1 members were identified in this study, and subcellular localization results showed that the family was localized to the nucleus; Evolutionary trees are divided into three group; The promoter contains a variety of adversity and hormone-responsive elements; BES1 family members had both positive and negative regulatory members in response to salinity-alkali stress, showing the diversity of different members in response to adversity stress. The