Based　on　the　investigation　performed　in　Part　I　of　this　series,　numerical　results　for　the　interaction　between　a　semiinfinite　interface　crack　and　multiple　subinterface　matrix　microcracks　in　three　kinds　of　material　combinations　are　given　in　Part　II.　The　major　interaction　behaviors　are　discussed　in　detail.　Special　attention　is　focused　on　the　influences　of　the　different　material　combinations,　the　T-stress,　the　orientation　angles,　and　the　location　angles　of　the　microcracks　on　the　local　stress　intensity　factor　at　the　interface　crack　tip.　In　addition,　the　variable　tendencies　of　the　interaction　effect　induced　from　change　of　the　distance　between　the　interface　crack　tip　and　the　centers　of　the　microcracks　are　studied.　It　is　concluded　that　the　different　material　combinations　introduced　in　this　paper　have　little　influence　on　the　variable　tendencies　of　the　effect,　but　have　significant　influence　on　the　effect　in　magnitude.　Detailed　comparisons　of　the　results　with　those　in　a　homogeneous　orthotropic　material　show　that　the　dissimilar　materials　shift　the　maximum　amplification　angle,　the　maximum　shielding　angle,　the　neutral　shielding　angle,　and　the　neutral　T-stress　angle,　respectively.　(C)　2000　Elsevier　Science　Ltd.　All　rights　reserved.