A brushroll for a robot vacuum cleaner, comprising: a first roller and a second roller, the first roller and the second roller being mirror-symmetrical with respect to an axis perpendicular to the brushroll and are coaxially arranged, the first roller being provided with a plurality of first mounting grooves spaced apart from each other and arranged along a circumferential direction of the first roller, the second roller being provided with a plurality of second mounting grooves spaced apart from each other and arranged along a circumferential direction of the second roller; a first brush member inserted in the first mounting groove; and a second brush member inserted in the second mounting groove, wherein the first mounting groove is a T-shaped groove, and the second mounting groove is a T-shaped groove, the brushroll further comprising a connecting member that connects the first roller and the second roller and is configured to limit relative rotation of the first roller and the second roller, characterized in that the connecting member comprises a disc body, a first snap block, and a second snap block, and the first snap block and the second snap block are arranged on two opposite sides of the disc body respectively; the first roller is provided with a first snap groove, while the second roller is provided with a second snap groove; the first snap block is snap-fitted in the first snap groove, and the second snap block is snap-fitted in the second snap groove, wherein the first snap grooves are arranged along the circumference of the first roller between the first mounting grooves and the second snap grooves are arranged along the circumference of the second roller between the second mounting grooves. a first roller and a second roller, the first roller and the second roller being mirror-symmetrical with respect to an axis perpendicular to the brushroll and are coaxially arranged, the first roller being provided with a plurality of first mounting grooves spaced apart from each other and arranged along a circumferential direction of the first roller, the second roller being provided with a plurality of second mounting grooves spaced apart from each other and arranged along a circumferential direction of the second roller; a first brush member inserted in the first mounting groove; and a second brush member inserted in the second mounting groove, wherein the first mounting groove is a T-shaped groove, and the second mounting groove is a T-shaped groove, the brushroll further comprising a connecting member that connects the first roller and the second roller and is configured to limit relative rotation of the first roller and the second roller, characterized in that the connecting member comprises a disc body, a first snap block, and a second snap block, and the first snap block and the second snap block are arranged on two opposite sides of the disc body respectively; the first roller is provided with a first snap groove, while the second roller is provided with a second snap groove; the first snap block is snap-fitted in the first snap groove, and the second snap block is snap-fitted in the second snap groove, wherein the first snap grooves are arranged along the circumference of the first roller between the first mounting grooves and the second snap grooves are arranged along the circumference of the second roller between the second mounting grooves.