The sociological research of premises of middle class formation in Moldova shows a very low level of crystallization of social statuses, based on what we can conclude that the process of the formation of classes is just at the initial stage. Analysis of social strata in terms of the middle class criteria: high socio-professional status, high education level, high level of welfare shows some prospects of formation of the middle class in the strata 4, 5 and 6. Respondents in strata 5 and 6 are characterized by high socio-occupational level, high education level and low welfare level. Respondents in strata 4 are characterized by medium socio-occupational level, medium education level and from medium to high welfare level. According to the research, the social status of respondents depends on certain personal characteristics (education level, socio-occupational status, income, socio-occupational status in the beginning of professional career); parents social status (socio-occupational status and level of education), and social status of respondent partner (socio-occupational status and level of education).