A shower curtain rod is a multiple-sectional rod composed of two supporting rods and at least one extension rod pivotally connected between the two supporting rods to allow shower curtain sleeving and suspending thereon. Distal ends of the two supporting rods rotatably combine with pivotal hinge assemblies to mount on the walls respectively. Thus, the extension rod is driven to different orientations by pushing and rotating one of the two supporting rods to selectively bend the shower curtain rod inward or outward to make the shower space variable with maximum benefit.