This paper focuses on ethnic tensions that level of interstate moves in intergroup and interpersonal level. This problem is extremely relevant for the modern Russian society, but it is poorly understood at the theoretical and practical levels. Conflict interaction in a labor collective, based on differences by ethnicity, recently reached the level of the problem, but increasingly consolidated in contemporary Russia. The article provides an analysis of empirical research. The basic hypothesis: tensions and conflicts of inter-ethnic interaction in the workplace can be caused by the loss of ethnic identity of respondents as a result of adaptation to the socio-cultural environment and a high degree of manifestation of assimilation and conformity. Goal of research: to identify the presence of tension and conflict in interethnic relations in the working team and conditionality of their occurrence. Method of research is a survey, which includes techniques of cross-cultural psychology. Analysis of the data showed a trend adaptation of ethnic groups to the rules and norms of Russian community. To the least different from the Russian community, migrants are forced to show conformity.