The invention provides a method for improving alloy yield in the melt-spinning process. The method includes the steps: adding residual steel in an alloy; heating and melting mixture to obtain liquid mixture; pouring the liquid mixture to obtain melt-spinning sheets when the temperature of the liquid mixture reaches 1300-1500 DEG C. The residual steel and the alloy have the same formulas or marks,the residual steel accounts for 0.2-2% of the weight of the alloy, and liquid alloys are splashed on a runner and adhered on the inner wall of the runner after being solidified to obtain the residualsteel. According to the method, the alloy yield in the melt-spinning process can be improved, magnetic performance of the melt-spinning sheets cannot be affected, resources are saved, cost is reduced,and the method is simple to operate and can be applied to mass production.