To provide a platform door leaf opening/closing device for railway capable of dealing with a plurality of doors by door leaves (doors) corresponding to a plurality of doors at 2, 3, 4, 6 places of a train waiting in a station precinct.

A vehicular door number determining device determines the number of vehicular doors when the train stops. An electromagnetic door lock device selects and separates a set of three door leaves into one door leaf and two door leaves, and the lock is released to open the door. A set of two door leaves and a set of three door leaves sliding to one side or to right/left sides are combined on first/second rails of the platform. The combinations of the door leaves are provided/connected for dealing with ten vehicles. A set of door leaves only on the first rail is for dealing with a six-door vehicle, and three sets of the door leaves are provided for dealing with three vehicles. A set of door leaves is for dealing with a two, three, or four-door vehicle, and two sets of the door leaves are provided for dealing with two vehicles. The platform door leaf opening/closing device for railway comprises the door leaves and a door leaf guide used for a blindfold shutter box, and the devices are provided/connected to deal with the fifteen vehicles.