The particle deposition in suspension flow through the lattice percolation porous media was studied based on numerical simulation of the Stokes equations and the simplified particle trajectory equation.Numerical results indicated essential differences in the deposition process between homogeneous and fractal porous media.In the homogeneous porous media;the deposition process could be seen as homogeneous.The exponential relation between the particle-flow-out probability and the system size was only applicable to homogeneous porous media.While in fractal porous media;the deposition process was quite heterogeneous.The exponential relation could not be used in fractal porous media.