In the production of porous concrete, it was confirmed that the flowability of the cement paste is stabilized by mixing for more than 270 seconds irrespective of the kind of chemical admixture. However, the use of superplasticizer influences water cement ratio and compressive strength which is suitable for porous concrete. In the compaction by surface vibrator for porous concrete, there was a difference of about 10% of void ratio between the upper and lower layers. It became clear that a suitable flow value for optimum performance of porous concrete is influenced by the value of a designed void ratio. The compressive strength of porous concrete is able to be estimated by the void ratio and the compressive strength of concrete without void when same binder is used.