Abstract: A hydraulic pressure-actuated distribution valve apparatus is disclosed to have a valve body with a water entrance and a number of distribution water exits. The apparatus includes an irrigation water distribution valve mechanism that comprises a one-way clutch means that includes a rotating rod pivotally rotatable inside the valve body and a rotating disk engage with the rotating rod for one-way rotation. The distribution valve apparatus receives irrigation water supply from a pressurized water source through the water entrance and distributes the irrigation water via one of the water exits in an established water path. The apparatus is characterized in that a change in the hydraulic pressure build-up in the pressurized water supply actuates the rotation of the one-way clutch means for changing the water path connection from the entrance to a next of the distribution water exits, so that irrigation water distribution can be switched among several irrigation regions.