Abstract: SWEET（sugars will eventually be exported transporter） is a well-known class of sugar transporters that play important roles in plant growth and development, fruit ripening, sugar transport and stress response. In this study, 27 SWEET genes were identified from jujube（Ziziphus jujuba）, and their conserved motifs, gene structure, chromosomal location, evolutionary relationships, promoter cis-acting elements were analysed, and the subcellular localization was predicted. The results showed that the ZjSWEET gene family members had 1～2 MtN3 conserved structural domains and contained multiple introns, unevenly distributed on 11 chromosomes. Based on phylogenetic relationships, the 27 ZjSWEET members can be divided into three branches, with the same branch having similar gene structure and motifs. The promoter region of the ZjSWEET genes contains multiple stress-related cis-elements such as hormones and stresses. Analysis of transcriptome data indicated that genes ZjSWEET9, ZjSWEET22 and ZjSWEET23 may be involved in the regulation of sucrose accumulation in date fruits and ZjSWEET22, ZjSWEET23 and ZjSWEET25 may be involved in the regulation of high temperature stress. In conclusion, ZjSWEET plays an important role in fruit development process and high temperature stress, and these results help to better understand SWEET genes, thus providing a reference for further exploration of date SWEET gene functions.