To provide a method of manufacturing a concrete molded body capable of sufficiently realizing the filling of concrete into a mold frame by remarkably suppressing the amount of air bubbles on the surface of the molded body even if the vibration compaction is not given to the concrete or energy given by the vibration compaction is remarkably lowered.

The method of manufacturing the concrete molded body characterised in that one type of concrete selected from among a concrete conditioned so that a slump flow is 650 to 720 mm and a V-funnel dropping time is 7 to 20 seconds, a concrete conditioned so that the slump flow is 550 to 650 mm, and a concrete conditioned so that the slump flow is 400 to 550 mm and the V-funnel dropping time is less than 12 seconds, is filled in the mold frame, and then vibration of 15 to 35 Hz in frequency and 0.3 to 1.0 mm in amplitude is given to the concrete, has been developed.