Combined　with　the　homogenization　method　and　the　least　squares　method,　the　filter　function　with　the　form　of　power　function　is　studied　in　the　Independent　Continuum　Map　(ICM)　method.　Then,　the　numerical　simulation　method　is　used　to　study　the　relationship　between　a　weight　filter　function　and　a　stiffness　filter　function.　Finally,　the　impact　of　the　filtration　function　on　the　efficiency　of　topology　optimization　is　showed　by　examples.　It　is　important　to　further　research　structural　topology　optimization.