This study is devoted to the study of improving the quality of knowledge of future bilingual teachers of mathematics in a modern university using digital educational resources. One of the key objects for assessing the quality of education is the quality of students' knowledge. In the framework of this study, we considered the quality of knowledge of future bilingual teachers of mathematics as the ability to use the Russian and Tatar language in pedagogical activity at the same level. The purpose of the study is theoretical substantiation, development and testing of a model for improving the quality of knowledge of future bilingual mathematics teachers using digital educational resources. The results of the study can be used both nationally and internationally, since the study is aimed at the scientific and practical solution of the problems of modernizing society based on strengthening the national-cultural identity of a new generation of citizens, which is a national priority today. And on an international scale, the study is aimed at training modern specialists who can easily integrate into the international community, based on the development of intercultural communication skills with representatives of various ethnic groups and cultures. The developed model for improving the quality of knowledge of future bilingual teachers by means of DER in the educational process is universal in nature, which makes it possible to use it in other universities.