To provide an Oldham's coupling and a scroll compressor provided with the coupling capable of improving the efficiency of oil supply to slide sections on a rear surface of a movable scroll member and a thrust load receive face of a housing receiving it by improving the sealing property of a clearance in the axial direction of an Oldham's key and an Oldham's key groove to prevent oil passing in this clearance.

In an Oldham's coupling which is provided with an Oldham's ring 10 arranged between a rear surface of a movable scroll member 70 and a housing 32 and employs key grooves 21, 22 and a key 14 to connect the rear surface of the movable scroll member 70 with the Oldham's ring 10 and connect the housing 32 with the Oldham's ring 10, a sealing member 1 sealing a clearance between the key 14 and the groove 21 corresponding to it is provided in the key 14 to improve the sealing property and flow of oil is introduced into a connection part having no key to improve the lubrication property by oil of the rear surface of the movable scroll member 70 and a face opposing to the housing 32.