The utility model provides an energy-saving modularized public housing integrated wall structure which comprises a supporting module, a protection module and a decoration module. The building wall is characterized in that the protection module is arranged on the outer side of the supporting module, the decoration module is arranged on the outer side of the protection module, the supporting module comprises end columns arranged at the two ends of the wall body, the tops of the end columns are fixedly connected with top beams, and the inner sides of the end columns are fixedly connected with bottom beams. The wall has the advantages that the supporting module comprising the end columns, the top beams, the bottom beams, the auxiliary supporting assemblies and the connecting grooves is arranged, the supporting module is used for guaranteeing the strength of the wall, the protection module protects the supporting module, the decoration module can decorate the wall, and the attractive degree of the wall is improved. All the modules can be rapidly combined and installed, the wall body is integrated, wet operation is not needed, and the construction period can be effectively shortened. The sound insulation cotton is arranged in the wall body, the sound insulation effect of the wall body can be improved, and the use comfort is improved.