SQUAMOSA promoter binding protein (SBP)-box genes encode a family of plant-specific transcription factors that play vital roles in plant growth and development. In this study, we used bioinformatics analysis methods to identify and compare the SBP gene family in different tea plant genomes of ‘Tieguanyin’, ‘Huangdan’, ‘Shuchazao’ and ‘Longjing 43’. We used qRT-PCR technology to analysis the expression patterns of CsTGY_SBP gene family in different tea plants. The results showed that: (1) There are 21,25,24 and 23 SBP genes were identified in the reference genome of Camellia sinensis ‘Tieguanyin’, Camellia sinensis ‘Huangdan’, Camellia sinensis ‘Shuchazao’ and Camellia sinensis ‘Longjing 43’ respectively. (2) The SBP genes were phylogenetically classified into 8 subgroups. Collinearity analysis indicated that the orthology of CsTGY_SBP genes in Arabidopsis thaliana and Vitis vinifera was higher than that of Oryza sativa. The collinearity between Camellia sinensis ‘Tieguanyin’ and Camellia sinensis ‘Huangdan’ was found to be more significant in the same species. (3) The results of qRT-PCR showed that CsTGY_SBP5, CsTGY_SBP9 and CsTGY_SBP14 showed middle-affinity expression patterns in F1‘Jinguanyin’. Most of CsTGY_SBP genes showed a lower expression pattern than their parents in F1‘Huangguanyin’, and CsTGY_SBP5 and CsTGY_SBP8 were significantly higher than their parents in F1‘Jinmudan’. The expression levels of CsTGY_SBP5, CsTGY_SBP7, CsTGY_SBP12, CsTGY_SBP16 and CsTGY_SBP18 were significantly higher than their parents in F1‘Zimeigui’, showing a pattern of ultra-high parental expression. The expression of CsTGY_SBP genes in F1‘Zimudan’ tends to be the famale parent ‘Tieguanyin’ on the whole, and the expression of CsTGY_SBP genes in F1‘Ruixiang’ is lower than the male parent HD genernally. CsTGY_SBP5, which is significantly higher than the parent in F1‘Jinmudan’ and F1‘Zimeigui’, may be an important regulatory factor of tea plant heterosis. This study provides a reference for exploring the inheritance of SBP genes in tea hybrids and parents