The invention relates to a warm-keeping bag less prone to slipping off and with a cartoon pattern. The warm-keeping bag comprises a circular bag body and is characterized in that a bag strap is arranged on the upper portion of the bag body, and spherical beads are tightly arranged on the outer surface of the bag body to form the cartoon pattern. The warm-keeping bag has the advantages that the friction force of the outer surface of the bag body can be increased by the aid of the spherical beads arranged on the outer surface of the bag body, the bag is less prone to slipping off when a person takes the bag, and the tightly-arranged spherical beads form the cartoon pattern which satisfies the needs of children and the needs of adults who love cartoon patterns.