You can breed Minecraft villagers to increase your population, but there are some requirements.
Minecraft villager need to have enough food and unclaimed beds in order to breed. These beds need at least two blocks of space to be above them.
Villagers can also breed according to the time of day. This raises a question: Can it be possible to breed villages underground? It is not easy to answer because villagers need to have access to the skies to be able to breed properly.
The community found a way around the restriction, without having to cut holes in their underground villages or caves.
How a villager can breed Minecraft and allow the villager to live underground
Minecraft villagers are not intended to reproduce underground. They are primarily designed for above-ground locations like villages and player-built structures.
The solution has been found by Minecraft gamers who have used a villager breeder. How does it work? The breeder raises the villager above ground, then pushes them through a tunneling system and places them underground for players.
The machine can also be reversed, allowing the villager to go partially underground while the offspring are pushed to the surface.
This design is not ideal for Minecraft users who have a strict policy of “no above ground” due to the challenge. They can still avoid the problem of villager breeding by placing large holes above the beds and doors of the villagers who live underground.
The more holes that let the sun and sky shine through, the more doors they are able to place and the more villages they can possibly breed underground. The village breeder is the best choice for underground environments that are essentially sealed off.
Players who use the hole/skylight technique will still need to raise their “willingness” stat. You can do this by creating an underground farm complete with a composting unit.
Any villager who is unemployed will try to take the block and become farmers. Once the farmer is underground, villagers can share their food with other villagers.
When enough food is in the village’s personal inventory, they will be able to breed as long as there are still unclaimed beds. These beds and the doors next to them will require skylights or holes to ensure that the offspring can find a home once they spawn.