Indoor decoration sound insulation system

The utility model discloses an indoor decoration sound insulation system, and relates to the technical field of decoration engineering, the indoor decoration sound insulation system comprises a wall surface sound insulation structure and a suspended ceiling sound insulation structure, the wall surface sound insulation structure comprises a first rock wool layer used for covering a wall surface, and a first gypsum board and a first sound insulation felt which are arranged on the first rock wool layer and far away from the wall surface; the first gypsum boards and the first sound insulation felts are arranged at intervals; the suspended ceiling sound insulation structure comprises a suspended ceiling board, a second rock wool layer fixed to the bottom of the suspended ceiling board, a second gypsum board and a second sound insulation felt, wherein the second gypsum board and the second sound insulation felt are arranged on the second rock wool layer and away from the wall face, and the second sound insulation f