The transition to the filling mining method at Suichang Gold Mine hinges on the filling process and system. The physical and mechanical properties, mineral composition, and chemical composition of various filling aggregates differ significantly, leading to notable variations in pipeline transport performance and mechanical properties as filling materials. This study conducts experimental research, theoretical analysis, and comparative evaluations on aggregates from different sources. Key technical parameters, including thickening and dewatering, and filling mix ratios, were determined for aggregates readily available at the mine. The findings scientifically evaluate the performance of these materials as filling aggregates, ultimately confirming the feasibility and specific mix ratios of lead-zinc tailings and granite powder as filling materials.