The aim of this study was to determine the effect of bracing sequences technique on core stability and kata performance of karate athletes. 38 male karate athletes participated in the study divided into the experimental group (n=21) and the control group (n=17). The athlete performance test and core stability test were done at pre-test and post-test after 8 weeks of a core stability program (bracing sequences technique). The experimental group showed significant improvement in athlete performance test (p < 0.001) and in core stability test with (p < 0.05). There was very strong positive correlation between athlete performance test and player belt (r =0.780), considerable positive correlation between core stability test and player belt (ρ =0.604), considerable positive correlation between athlete performance test and player age (ρ =0.554), and average positive correlation between core stability test and player age (ρ=0.481). In conclusion, karate athletes showed great improvement in kata performance and core stability level after bracing sequences technique program.