Deposits on teeth may differ in color and degree of cariogenicity. Their prevalence rate is up to 18%. The review of relevant literature revealed a lack of classification of stained plaque in children. In this paper the systematization of stained plaque is proposed. The aim of our study was to systematize stained dental plaques. The literature review and two own researches, involving 154 children from 6 to 15 years and 408 children from 6 to 17 years, resulted in the proposed systematization of stained plaques, based on plaque color, its localization, degree of cariogenicity and classes of associated diseases (according to the international classification of diseases, 10th revision - ICD 10). Colored dental plaque was found in 64 children from 6 to 17 years old. It is systematized according to its color (black, brown, green, orange, blue), its localization on the tooth surface, the degree of cariogenicity (high, low) and the class of associated diseases (according to ICD 10). At present, the correlation between stained dental plaque formation and associated diseases, diet characteristics, carious process intensity, and oral microflora has not been sufficiently disclosed, and therefore these issues require further examination.