The invention discloses a method for recovering sodium carbonate from a sodium tungstate leaching solution, andbelongs to the field of resource recycling.Aiming at a feature that a concentration of WO3 in the sodium tungstate leaching solution is lower generally, the method comprises the following steps of: firstly, concentrating the sodium tungstate leaching solution, improving an initial concentration of Na2CO3 in the solution as much as possible to improve a crystallization rate of the sodium carbonate in a freezing crystallization process, and simultaneously ensuring a proper initial concentration of WO3 to prevent the sodium tungstate from crystallizing together with the sodium carbonate.By the adoption of the method for recovering the sodium carbonate from the sodium tungstate leaching solution,a direct freezing crystallization method is combined with an NaHCO3 crystallization method, most of sodium carbonate crystal are recovered by the direct freezing crystallization method, thereby reducing the consumption of subsequently-injected CO2 and neutralization time of ventilation, meanwhile, further improving a total recovery rate of the sodium carbonate through the NaHCO3 crystallization method, and covering the shortage of low recovery rate of the direct freezing crystallization method; and aiming at the feature that temperature-lowering is slow in a later period in a cooling and temperature-lowering process, crushed ice blocks are directly added to dissolve and rapidly lower the temperature, thereby greatly improving the productioneffectiveness.