The utility model discloses a sound insulation panel of embedded capsule array, the damping layer that the sandwich layer of making including PU expanded material, the fire prevention flameresistant material of sandwich layer both sides made to and the metal surface course in the damping layer outside, spread at least one deck capsule array in the sandwich layer, inside 20 of the capsule inner chamber volume of filling of capsule 30% miropowder particulate matter. The utility model discloses it is the sandwich structure reinforced plate's that goes out through the different material construction of multilayer sound -proofing properties to see from overall structure, wherein through the three -dimensional phonon crystal structure of capsule array structure, further eliminates the low -frequency noise that sandwich structure can not cut off, and the miropowder granule in the capsule especially takes place the vibration in the low -frequency noise transmittance process at the noise, effectively consumes low frequency noise energy.