The gallery and museum presents a collection of early works by K.S. Petrov-Vodkin, his belongings and household items of the late XIX - early XX centuries, exhibited in the house-museum of the artist. Later, in the 1960s, after the opening of the gallery of K.S. Petrov-Vodkin, the collection was replenished with gifts from famous Soviet artists: A. Lentulova, E. Bebutova, N. Udaltsova, K. Redko, N. Romadin, B. Prorokova, G. Vereisky, Y. Pimenov, B. Nemensky, Y. Korovin; "Kukryniks group", N. Gluskin, S.A. Chuykov, V.A. Favorsky, I. Golitsyn, V. Popkov and others.