The invention discloses a valve device capable of intelligently and equivalently distributing water comprising a main pipe body, a switch fixing piece, a rotating disc, a rotating rod, a sealing plate, a folding sealing sleeve, a piston head, a water distribution pipe, a group partition plate, a connecting pipe, a main water pipe, a power supply, a bearing platform, a telescopic rod, a mainstream ball valve switch, a mainstream liquid level sensor, a control switch, a trunking box, a controller, a pipeline supporting device, a shunting ball valve switch and a shunting liquid level sensor. The valve device has the advantages that the valve has a good water distribution effect and can achieve equivalent water distribution, large errors of distributed water are avoided, the valve device can be applied to work with special water quantity requirements, the valve can be widely popularized in water distribution work, and the water distribution work can be efficiently and accurately completed.