The invention relates to the field of machinery engineering sealing, and concretely relates to a labyrinth-type magnetofluid sealing device. The device comprises a shaft, a housing, a first pole shoe ring, a second pole shoe ring, and a third pole shoe ring; the first pole shoe ring is positioned at the left side of the second pole shoe ring, a pole tooth I is established at the right end of the first pole shoe ring, an annular groove I is established at the left end of the first pole shoe ring, a permanent magnet I is arranged in the annular groove I, a pole tooth II and a pole tooth III are established at the left end of the second pole shoe ring, an annular groove II is established at the right end of the second pole shoe ring, a permanent magnet III is arranged in the annular groove II, the third pole shoe ring is arranged at the external circular surface of the second pole shoe ring, a space is kept between the third pole shoe ring and the first pole shoe ring, a permanent magnet II is arranged in the space, the pole tooth II is positioned over the pole tooth I at the top of the first pole shoe ring, the pole tooth III is positioned below the pole tooth I at the bottom of the first pole shoe ring, and the pole tooth I stretches into the space composed of the pole tooth II and the pole tooth III.