Abstract: This paper describes a new method for scale allocation of pump stations over the reclamation area to meet the drainage demand, comprehensively considering the characteristics of the river network, flooding process, and the spatial locations of the stations. The relationship of the river network layout and pumping station scales versus the regional characteristics is examined. Application to the Lingang Industrial Zone shows that (1) Compared with the alternative schemes, adoption of this method can effectively reduce the total scale of the pump stations and the frequency of pump opening and closing. (2) There exists an obvious coupling between the river network layout and the regional characteristics: a layout of three horizontal channels and four vertical channels should be adopted in the case of the shape factor exceeding the threshold, and otherwise two horizontal and four vertical channels are optimal. The results would help construct drainage systems for reclamation areas.