The invention discloses an efficient polymeric phosphato-aluminum ferric chloride storage device. The efficient polymeric phosphato-aluminum ferric chloride storage device comprises a shell, wherein arectangular channel is formed in a side wall of one side of the shell; a grating plate which is fixedly connected with the inner side wall of the shell is mounted below the bottom of the channel; twoU-direction guiding grooves which are fixedly connected with the inner side wall of the shell are formed in the bottom of the grating plate; the two guiding grooves are parallel; a drying mechanism is slidably mounted on the sides, which are close to each other, of the two guiding grooves; a filtering mechanism which is fixedly connected with the bottom of the shell is mounted below the side, which is away from the channel, of the drying mechanism; an air inlet pipe which is fixedly connected with the inner side wall of the shell in a sleeving manner is mounted on the side, which is away fromthe channel, of the filtering mechanism; and a bottom plate is mounted on the top of the grating plate. The efficient polymeric phosphato-aluminum ferric chloride storage device is simple in structure and convenient to operate; on one hand, polymeric phosphato-aluminum ferric chloride is stored in an assisted manner, and the labor intensity of operators is reduced; and on the other hand, the inside of storage space for the polymeric phosphato-aluminum ferric chloride is a clean and dry environment, and thus, the polymeric phosphato-aluminum ferric chloride storage time is prolonged.