A　novel　direct　cut-and-paste　editing　method　over　3D　triangular　meshes　is　proposed.　The　source　feature　mesh　is　transferred　to　the　position　where　it　is　to　be　pasted　through　the　corresponding　planes.　The　planes　are　created　by　using　the　least　squares　approximation.　The　local　mesh　representation　is　used,　and　the　pasted　region　is　reconstructed　in　the　least　squares　sense.　Then,　the　boundary　vertices　of　the　source　feature　mesh　are　connected　with　target　mesh.　This　method　is　applicable　to　source　geometry　features　with　non-zero　genus.　It　can　be　performed　at　interactive　rates　and　can　produce　authentic　effects　with　little　distortion.