The utility model provides a wet -processing apparatus. Carry at the nozzle and put the regional wet -processing apparatus who carries out the transport of nozzle between the position that respectively handles who carries on putting the region with a plurality of base plates and suppress the damage of the piping be connected with the nozzle and the decline of suppression productivity ratio. To install the constitution carries the rear of putting regional row for possessing the setting at the base plate for it carries to put the region and be used for making the arm to circle the moving axis and rotates on the horizontal direction and make to carry the nozzle of putting the nozzle the drive division that the axis of rotation moved on left right direction. The follow nozzle carries puts regional general this standby position is carried from the standby position's that the processing position with carrying the destination among the standby position who sets for with each processing position corresponds with corresponding rear to the nozzle, makes this nozzle in this standby position standby after that, later carries this nozzle handle the position. Standby position lies in the base plate and carries to put the regional outside and to lie in when the rear is upwards observed in the front and handle position and nozzle and year put between the region.