A fundamental phase in the human development is adolescence. Defining for adolescence are the complex and complicated biological, cognitive and psychosocial modifications. The large changes and evolutions on all the plans influence significantly the emotional sphere of adolescents. The emotional experiences reach a pronounced intensity and instability. Adolescents demonstrates emotional instability and inconstancy, an exacerbation of negative emotions (anxiety and depression). As results of experimental study of negative emotions at adolescents we worriedly, we find that most of the adolescents, more than half of them (59,60% and 8,90%) have a moderate and high level of anxiety. A comparative analysis at the level of adolescents’ batch, depending on the dimension of gender, concerning the anxiety, allows us to declare that the high level of anxiety is more characteristic to girls. For depressive states: more than half of the adolescents (53,10% and 2,10%) experience moderate and high levels of depressive states. The correlation coefficient between anxiety and the depressive states confirms the existence of an interrelationship between anxiety and depressive feelings. Even though there are no gender differences in manifesting the depressive states at adolescents, the girls have an obvious higher frequency for depressive states than boys.