The invention provides a production process for extracting saponins from yellow ginger by using a solvent catalyzing method. The process comprises the following steps: cleaning and crushing the yellow ginger, effectively extracting the saponins from the yellow ginger by using an organic solvent added with a catalyst to separate large amount of starch cellulose for resource utilization, concentrating the extract to obtain saponins pulp, hydrolyzing the saponins pulp by inorganic acid to obtain a hydrolysate containing the saponins, then carrying out soxhlet extraction for the hydrolysate by using NO.120 gasoline, and finally crystallizing and drying the extract to obtain a saponins product. The production process has the advantages that the yield of the saponins is high (2.6 to 2.8 percent), the process time is short (18 hours), the operation is simple, the acid consumption is little and the COD is reduced so as to lower cost and reduce environment pollution.