In this study, the tuber mustard cultivar ‘Yongan Xiaoye’ was selected as experimental material, and the isopentenyl transferases (IPT) family genes were identified in its genome. The fluorescent quantitative PCR were used to test the IPT gene expression patterns in different organs and under salt and Plasmodiophora brassicae treatments. The results showed: (1) twentyseven IPT genes were identified in the genome of tuber mustard, which were located on 14 of 18 chromosomes, the IPT proteins attributed to 7 clades in the phylogenetic tree. (2) The majority of IPT genes were highly expressed in roots and stems, little genes were expressed in leaves, flowers and pods. BjuB006281 were highly expressed in stems, and BjuA027211, BjuB010173, BjuB010174 and BjuA001839 were expressed higher in roots than the other organs. (3) Most of the IPT genes were downregulated by salt stress treatment, the expression of BjuB006281, BjuA036403, BjuB010173 and BjuB026254 were reduced between 12-48 h after salt stress treatment, while BjuB022918 and BjuB007352 were reduced between 24-48 h. (4) The majority of IPT genes were induced by P. brassicae treatment at 12 h, for example, the expression levels of BjuB006281, BjuA014415 and BjuB022918 were increased more than 15 folds comparing to the 0 h control. In together, several salt and P. brassicae responsive genes were identified in this study, which could provide a basis for further studying their functions.