To　study　the　effects　of　different　filter　functions　on　topology　optimization　of　continuous　structures　with　stress　constraints,　based　on　the　ICM(Independent,　Continuous,　Mapping)method,　the　present　work　will　focus　on　the　investigation　into　the　meaning　and　introduction　of　filter　function,　as　well　as　the　role　of　power　type　filter　functions　of　elemental　weight,　stiffness　and　allowable　stress　in　optimization　modeling　and　solution.　In　addition,　the　effects　of　three　filter　functions　on　the　optimal　topology　configurations　are　analyzed　and　discussed　by　numerical　experiments,　of　which　results　show,　the　efficient　and　ideal　topology　can　be　achieved　by　reasonable　selection　of　filter　functions　in　optimization　model.