As　the　prevalent　of　information　technology,　the　urban　management　became　more　and　more　dependent　on　information.　Subsequently,　the　wanton　propagation　of　harmful　information　often　cause　very　serious　damage　on　normal　urban　order,　and　is　becoming　a　critical　problem　faced　by　modern　urban　management.　In　order　to　gain　insight　in　the　harmful　information　propagation　and　hold　back　it　effectively,　an　experiment　and　analysis　method　is　need.　In　this　paper　a　harmful　information　propagation　model　for　urban　management　is　presented　based　on　discrete　event　simulation.　This　model　is　constructed　based　on　the　individual　behavior.　Thus,　it　can　be　abstracted　more　directly　and　be　extended　more　easily.　In　addition,　this　model　possesses　higher　fidelity　compare　to　traditional　model.　Finally,　some　experiments　are　conducted　with　this　model.　Simulation　results　demonstrate　that　this　model　can　work　well　in　urban　management.　©　2011　IEEE.