1. Background information.- 2.Noetherity criterion and a formula for the index of a singular integral functional operator of first order in the continuous case.- 3. The Noether theory of a singular integral functional operator of finite order in the continuous case.- 4. The Noether theory of singular integral functional operators with continuous coefficients on a non-closed contour.- 5. The Noether theory in algebras of singular integral functional operators.- References.