Abstract
In 20s of XX century the slogan that the literature should defend only proletariats’ interests was proclaimed and the name of “left feudalists” was given to many talented writers of that time, who had their own opinion. One of those bright literal people was Ydyrys Mustambayev, who was under the ideological pressure and whose name was undeservedly forgotten for a long period of time. Nowadays, the studying of his literary heritage is very actual for future development of Kazakh study of literature.