To provide sericultural facilities which is low in investment cost and heating-related running cost, while causing no disturbance of growth of the silkworms.

The facilities comprise a sericultural chamber 1 with controlled air flow from the outside, stratified silkworm seat 2 provided at the center of the floor in the chamber 1, and heating system 3 provided on the floor in the chamber 1 around, and apart from, the silkworm seat 2, which heats air taken into the chamber 1 by a heat storage body 32, heated by an electrical heater 33, and sends the warm wind of relatively weak wind power towards the lower side of the seat 2.