The invention discloses a manufacturing method for a water pump drainage damping base, and belongs to the field of construction equipment. According to the technical scheme, the manufacturing method comprises the steps of profile steel frame prefabricating, drainage pipe pre-burying, concrete pouring, drainage tank pressing, base leveling, and polishing and paint brushing. The manufacturing methodhas the beneficial effects that the manufacturing method is suitable for common construction sites, common materials on the construction sites are selected, using as well as doing can be achieved, the whole manufacturing method is simple and easy to do, and the very good sturdiness and stability are achieved; the cost of the manufacturing materials is low, a finished water pump damping base doesnot need to be bought, the construction cost is saved, and the manufacturing materials can be recycled; and the water pump base manufactured through the method effectively collects condensed water produced during long-time working of a water pump, the condensed water is discharged from a drainage pipe, and an external thread of the end of the drainage pipe is conveniently connected with other pipelines.