The utility model discloses a self-suction water recycling device for home. The device comprises a ultra-filtration filter, which is characterized by further including a water tank, a upper cover, a filtering cotton core, a water pipe, a one-way valve and a three-way valve. The middle of the water tank is provided with a separator to divide the water tank into a sewage chamber up and down; the filtering cotton core is arranged in the middle of the upper surface of the separator; the ultra-filtration filter is arranged in a purified water chamber, of which a water intake pipe at the top is connected with the filtering cotton core through a through hole of the separator; the three-way valve is an acute-angle three-way valve, of which the inclination angle of a water inlet is not more than 60 degrees and connected with the one-way valve; a purified water outlet of the purified water chamber is connected with the one-way valve by the water pipe; a sewage outlet of the ultra-filtration filter is arranged at the bottom of the water tank; an overflow port is arranged on the sewage chamber; the water inlet is arranged on the upper cover. The device can fully purify and recycle the water used in daily life, which has the advantages of saving water, simple structure, convenient application, and the adaptation to home use.