The aim of investigations was to examine what upbringing styles and socio-economic parameters correlate with adolescents? unstable self-esteem. Self-esteem is an evaluative measure of self-concept whose stability in time reflects personality?s autonomy and integrity. Using the sample of 280 secondary school students, the SSES scale was administered twice, at a 30-day interval, the EMBU scale of upbringing styles, a questionnaire with general data on respondents and socioeconomic parameters. It proved that upbringing style and parental tenderness (of both father and mother) correlate with unstable self-esteem in adolescents. Significant correlation between upbringing styles and unstable self-esteem was also found in inconsistency, low control and protection on the part of father. Stable self-esteem is significantly negatively correlated with inconsistency of mother. Of diverse socioeconomic parameters, educational level of father and his profession are of critical importance for stable self-esteem. Upbringing styles produce greater influence on self-esteem level than socio-economic parameters do.