The invention relates to the technical field of valves, in particular to an intelligent valve for water drainage on a ship splint. The intelligent valve comprises a valve pipeline, a flashboard, a mounting bracket, transmission mechanisms and an auxiliary opening mechanism, the mounting bracket fixedly sleeves the middle of the outer wall of the valve pipeline, the transmission mechanisms are arranged on two sides of the mounting bracket, the auxiliary opening mechanism is arranged at the top of the mounting bracket, the flashboard is arranged in a cavity of the valve pipeline and rotationally connected with the inner wall of the valve pipeline, a valve rod is arranged in the middle of the flashboard, penetrates through the flashboard and is fixedly connected with the flashboard, the upper end of the valve rod penetrates through the pipe wall of the valve pipeline, a joint of the valve rod and the pipe wall of the valve pipeline is arranged in a sealed mode, the valve rod is rotationally connected with the side wall of the valve pipeline, and the upper end of the valve rod is fixedly connected with a control gear. According to the intelligent valve, in the opening process, force generated by water flow can be used for assisting in opening of the flashboard, the operation is easy and fast, meanwhile when the flow of the valve pipeline is maximum, assistance can be automatically cut off.