The article deals with the role of affirmative/negative category in the formation of paremiological units. The qualification of this category at the level of architectonics of an ordinary sentence does not coincide with its role in the structure of paremiological units. In paremiological units negation acts as model-making-factor and constituenty of these models. Special negation functions model-making, too this kind of negation functions mainly as articulation in ordinary sentences. Paremiological units exit in general and negative orbits and do not accept double negation. The reason is that semantic structure of negation in paremiological units is of independent constructive character and does not lean on affirmative meaning from opposite side and its paradigms.