Building sound insulation wall structure

The invention relates to the technical field of building construction structures, in particular to a building sound insulation wall structure which comprises two supporting columns arranged in parallel and a building wall body installed between the two supporting columns, a placement groove is connected to the bottoms of the two supporting columns, the building wall body is embedded in the placement groove, the building wall body comprises a plurality of sound insulation blocks, and the sound insulation blocks are arranged in the placement groove. The multiple sound insulation blocks are spliced to form the building wall body, mounting cavities are formed in the sound insulation blocks, and sound insulation assemblies are fixedly connected into the mounting cavities. The sound insulation wall body of the building can be formed by splicing the modularized sound insulation blocks, installation and construction of the sound insulation wall body are facilitated, meanwhile, the modularized sound insulation blocks