The invention relates to ore screening equipment, in particular to hydraulic ore screening equipment capable of screening multiple specifications. The hydraulic ore screening equipment capable of screening multiple specifications comprises a bottom plate, a left support, a right support, a first slide rail, a second slide rail, a first slide block, a second slide block, a box, a screening device, a moving device, a water tank and the like, wherein the top of the bottom plate is sequentially connected with the left support, the first slide rail, the second slide rail, the right support and the water tank from left to right, the moving device is arranged on the left side of the upper part of the left support, the first slide block is connected onto the first slide rail in a sliding manner, and a second slide block is connected onto the second slide rail in a sliding manner. The hydraulic ore screening equipment can screen ores in multiple specifications, and a worker can replace a second screening net by the aid of a clamping groove and a handle.