To understand the movement behavior of wet magnetic particles in magnetic fluidized beds, the numerical simulations of wet magnetic particles movement under effect of uniform magnetic field are performed. In the mathematical model, the discrete element method (DEM) is adopted to simulate the particles movement, while both magnetic force and liquid bridge force models are considered. A two-dimensional dam-break problem is simulated to observe the effects of magnet-field and liquid bridge on the behavior of particles motion.Theresults show that:without magnet-field, as liquid-volume friction increasing, the speeds of particles become slowly and the particles are gathered obviously. When a magnet-field is applied, the particles form some chains parallel to the direction of magnetic sense, which reduce the average velocity and displacement of particles.