A transfer device includes: a first container including a bag portion configured to house liquid; a second container configured to house the liquid transferred from the first container; a transfer unit configured to transfer the liquid from the first container to the second container; and a controller configured to control the transfer unit to intermittently and repeatedly execute a transfer operation of starting transfer of the liquid and then completing the transfer before a side of the bag portion toward the transfer unit transitions to a suction contact state upon transferring the liquid from the first container to the second container.