This study aimed to investigate the average level of intercultural sensitivity and communication apprehension of EFL teaching assistants learners. In addition to propose the correlation between intercultural sensitivity and communication apprehension. In this study, the researchers selected and applied the mixed-method research paradigm. According to the findings of the research, intercultural sensitivity and communication apprehension have some positive effects on the performance of EFL teaching assistants (TA). The correlation and recognition can be measurably important in the intercultural sensitivity and communication apprehension for social contrasts in the temporary workplace with a high level. Proposing collaboration and adaptability in intercultural sensitivity and communication apprehension with EFL teaching assistants (TA) in order to modify negative respect, enjoyment, and open-mindedness caused by cultural differences. This furthermore encompasses the ability to deal with the tension and anxiety that comes with situations characterized by cultural variances.