【Objective】 The identification and characterization of the BRX family genes in tea plant, along with the analysis of their expression patterns in various tissues and under stress conditions. The research lays the groundwork for investigation into the functions of the tea plant BRX genes. 【Methods】 Employed the tea plant genome database and bioinformatics software such as TBtools, we have conducted an identification and analysis of BRX genes. The experimental material was tea plant variety ‘Shuchazao’. Different treatments including salt stress, drought, high temperature, low temperature, and exogenous GA3 application have been applied to it for various durations. The relative transcript abundance of the BRX gene family across different tissues and under these stresses conditions was quantified using RT-qPCR. 【Results】 A total of 5 CsBRX genes have been identified, encoding proteins composed of 313~370 amino acids. The structures of genes were similar and highly conserved. The promoter regions contained hormone and stress response elements. Based on evolutionary relationships, BRX proteins were divided into 4 subfamilies. CsBRX1, CsBRX3 and CsBRX5 were all expressed in young leaves, while CsBRX4 was exclusively expressed in old leaves. Under salt stress for 12 h, the transcriptional levels of CsBRX1, CsBRX2 and CsBRX4 were elevated to the greatest extend. CsBRX2 exhibited a swift response to low-temperature stress, with its relative expression peaked at the 1 h mark. CsBRX2 demonstrated a positive response to exogenous GA3 signaling, and its expression reached a zenith at the 24 h interval. 【Conclusion】 The CsBRX genes demonstrated tissue-specific expression patterns, responded variably to multiple stresses and GA signal, which offered insights for the investigation of stress tolerance mechanisms within tea plants.