When the children of transnational marriages between Taiwanese and Vietnamese, due to their limited proficiency in Mandarin and Taiwanese dialects, they may face difficulties in knowledge, teacher-student communication, and peer relationships with their classmates. This study used Zenbo Junior to develop educational robots for Vietnamese students to learn Chinese, including how Vietnamese corresponds to Chinese, in order to enhance the interest of the second generation of new immigrants studying in Taiwan's elementary schools to learn Chinese, and thus, reduce the burden of elementary school teachers in educating Vietnamese students. Since the machine was provided for elementary school teachers and Vietnamese students, good results have been achieved. This Vietnamese-Chinese educational and test robot can be used as a tool for teachers to assist foreign students in language learning.