To address the issues of inadequate resource utilization， complex processes， and low economic added value associated with electrolytic manganese residue （EMR） solid waste， in order to effectively consume and utilize EMR， this study utilizes experimental methods， underpinned by preliminary theoretical analysis， to examine the impacts of basic raw material ratios （mass ratio of EMR to the combined mass of EMR and FA）， alkaline activator ratios （proportions of water glass， NaOH， and mixed water）， and the types and quantities of foaming and stabilizing agents on the performance of the targeted insulation material. The findings indicate that both the basic raw material ratio and the alkaline activator ratio profoundly affect the molar ratios of SiO2/Al2O3， SiO2/Na2O， and liquid/solid mass ratio， significantly influencing the mechanical properties of the samples. Optimal mechanical performance of the construction material samples is achieved with a basic raw material ratio of 0.7， a SiO2/Al2O3 molar ratio of 4.0， a SiO2/Na2O molar ratio of 2.5， and a liquid/solid mass ratio of 0.5， resulting in a compressive strength of 11.15 MPa and a density of 1 476 kg/m3. Furthermore， the type and quantity of foaming and stabilizing agents influence the sample properties significantly； optimal performance of the building insulation material samples occurs when using hydrogen peroxide as the foaming agent （4~6 g） and a laboratory-made stabilizing agent （2 g）， achieving a thermal conductivity of 0.104~0.131 W/（m·K）， compressive strength of 0.69~1.49 MPa， density of 433~533 kg/m3， and a cost of 1 294~1 722 CNY/m3. This study offers new perspectives on the extensive consumption and utilization of EMR， reducing building energy requirements while fulfilling insulation and thermal resistance needs， with considerable potential for engineering applications after further optimization.