In order to artificially produce a honeycomb that is equivalent to honeycomb that honeybees produce in a natural environment, an artificial honeycomb is provided of which at least one pair of facing walls among the six walls configuring each honeycomb cell is formed in an inclined manner such that the gap between the two expands from the floor end of the walls towards the opening, and the floor plates and the walls are formed from a polylactic acid resin.