To provide a smoke protective device at a doorway of an elevator, preventing an elevator shaft from causing a chimney effect after a hallway is filled with smoke.

A smoke protective device 1 operates a fire door 2 stored in a wall surface in disaster and forms a smoke-proof section at the doorway of the elevator, and a smoke shielding member 3 is attached to the lower part of the fire door 2 so as to contact with a floor surface.