The invention relates to a configuration design method for controlling multiple pump sources of a hydraulic system through digital and analogue combination. The configuration design method mainly comprises the following steps: (1), obtaining a flow demand Q(t), a maximal flow value Qmax and an absolute value h of a maximal flow change rate required by the hydraulic system according to action requirements of hydraulic equipment; (2), determining an optimal combination coefficient lamdaof a quantitative pump set and the discharge capacity D1 of a minimal pump in the quantitative pump set according to a theoretical formula provided by the invention; (3), determining the number m of quantitative pumps and the maximal discharge capacity Dk of the pumps according to the theoretical formula provided by the invention; and (4), determining the number n and the full discharge capacity gammaj of variable pumps. According to the invention, flow matching of a load is realized; the configuration design method has the advantages of being rapid to respond, free from overflow loss, high in transmission efficiency and continuous and adjustable in output flow; the configuration design method has the advantages of the traditional valve control system and pump control system; and furthermore, the disadvantages of being high in investment of the pump control system and high in maintenance cost are avoided.