Data on the synthesis and chemical properties of the phosphorus-containing derivatives of indoles and pyrroles, published in 1976-1998, are reviewed. The introduction of substituents containing tri- and tetracoordinated phosphorus atom into the heterocycle and the side chain is discussed. Information on the biological activity is presented. Authors: P. A. Gurevich and V. A. Yaroshevskaya. English Translation in Chemistry of Heterocyclic Compounds , 2000, 36 (12), pp 1361-1401 http://link.springer.com/article/10.1023/A%3A1017562111215