A terminal with an adjustable screen size includes: a first body; a second body disposed opposite to the first body; one or more stepping motors disposed on the first body or the second body and configured to drive a relative movement of the first body and the second body; a rotating shaft disposed on the second body; a chain plate driven around the rotating shaft, wherein a side of the chain plate is fixedly connected to the first body; and a flexible display screen flatly fixed onto the chain plate.