To provide a lock set for a sliding door low in cost with fine appearance.

The lock set for the sliding door comprises a strike 2 fixed to a door stop frame 1, and a locking device 5 for the sliding door provided with a locking member 4 fixed to a door end frame 3 of the sliding door and locked to the strike 2 in a locking rotating position to lock the sliding door. The locking member 4 intrudes into the door stop frame 1 and is locked to a locking face 6 of the strike 2 in a locking state, and the strike 2 is formed with an inclined face 7 for imparting rotational component force on the lock release rotating position side to the locking member 4 when the locking member 4 in the locking rotating position comes in abutting contact.