Valve plate assembly, soft water valve and water softener

The utility model provides a valve plate assembly, a water softening valve and a water softening machine, the valve plate assembly comprises a movable valve plate and a static valve plate, and a plurality of grooves arranged at intervals are formed in one side of the movable valve plate; the static valve plate is attached to the movable valve plate, a plurality of water passing holes are formed in the static valve plate, the movable valve plate is suitable for rotating to a plurality of target positions relative to the static valve plate, and at the target positions, orthographic projections of the water passing holes in the movable valve plate are located in the corresponding grooves. When the flow path is formed at a target position, the orthographic projection of the water passing hole on the movable valve plate is located in the corresponding groove, that is, the groove covers the corresponding water passing hole, so that the water passing hole which does not need to form the flow path is covered by the groove which does not need to form the flow path, and a gap is formed between the water passing hole which does not need to form the flow path and the formed flow path; therefore, water is prevented from seeping into other water passing holes in a formed flow path, the water passing holes are covered with the grooves, and the sealing performance of the water passing holes is improved.