To provide a manufacturing method of a residual form having a large number of holes, with which its productivity is improved and a mass production becomes possible.

Onto a production mold main body 1, from the lattice-like bottom surface of which a large number of hole-forming pins 1b are disposed in upright, a bottom plate 2, onto which the pins 1b penetrate from above, is inserted onto the bottom surface and, a wire gauze 31 is held afloat at the midway of the pins 1b. Next, a ready-mixed concrete, the slump of which is zero, is placed from above in the production mold main body 1 so as to compress from above and compact the ready-mixed concrete under the state that the production mold main body is vibrated. Finally, by pushing up the bottom plate 2 from below, the compacted ready-mixed concrete is immediately demolded from the production mold main body 1 so as to cure and set the compacted ready-mixed concrete on the bottom plate 2.