To inexpensively provide a stopper jig for a door of an elevator that can easily block movement of a door.

When the stopper jig 7 for a door is mounted on a door rail 5, a projecting portion 10A and 10B of a locking member 10 fixed to a bottom surface of a flange portion 8A of a support member 8 can wedge between a rolling contact surface 6A of a door roller 6 and a top surface of the door rail 5 to block rolling movement of the door roller 6. The support member 8 is easily removably mountable in a desirable position on a side of the door rail 5 via an attracting member 9 such as a permanent magnet. If an abutting member 11 is fixed on a top surface of the flange portion 8A of the support member 8 so as to abut the outer circumference of flange portions 6B of the door roller 6, movement of the door 2 can be blocked more reliably. The locking member 10 and the abutting member 11 can preferably be formed from elastic material to prevent damage to the door roller 6.