The utility model relates to a filter screen composition of a water dispenser, which comprises a front and a back plate and forms a corresponding limiting component within a preset range, and an active carbon filter screen is allowed to be placed and clamped in the corresponding area of the front and back plate, and a concave part is kept along the corresponding two periphery of the lower part of the front and back plate, so as to cooperate with the convex area of the corresponding component pre arranged in the water dispenser. So that the water filtering plate has an exact orientation restriction on the whole, and the active carbon filter screen inside can keep stable and limited even after a period of water flow.一種飲水器濾網組成，是對結合在寵物飲水器其間的濾水板是含括一前後板並在預設範圍形成相應的限制組件，及在前後板的相應區域是允許置入活性碳濾網並呈夾持，在沿著前後板靠下部位的相應二周邊是保持一凹部，以配合跨入飲水器預組設的相應構件凸設區，使該濾水板在整體獲有一確切方位限制，可利內部的活性碳濾網即使在經一段時間的水流通過仍保持平穩受限。
