Siberian Krai was formed on May 25, 1925 by the decree of the Central Executive Committee,[1] with the center in the city of Novo-Nikolayevsk, renamed in 1926 to Novosibirsk.

The Oyrot autonomous oblast was also included in its composition, as well as the Irkutsk governorate, however it was initially subordinated to the regional bodies of the Siberian Krai and not divided into okrugs until 1926.

The creation of the krai was of great importance for the economic and cultural development of the indigenous peoples and national minorities.

The Siberian Regional Executive Committee adopted and implemented a special program to support national-territorial entities.

On July 23, 1930, the Central Executive Committee and the Council of People's Commissars of the USSR adopted a resolution on the liquidation of the okrugs,[8] which determined changes in the administrative structure of Siberia.