In　this　paper,　wrought　magnesium　alloy　AZ31B　sheets　were　brazed　by　means　of　high-frequency　induction　heating　device　using　a　novel　Al-based　filler　metal　in　argon　gas　shield　condition.　The　interfacial　microstructure,　phase　constitution　and　fracture　morphology　of　the　brazed　joint　were　studied.　The　experimental　results　show　that　alpha-Mg　solid　solution　and　beta-Mg17Al12　phase　were　formed　in　brazing　region.　Moreover,　the　homogeneous　Mg-32(Al,　Zn)(49)　phase　in　the　original　Al-based　filler　metal　disappeared　entirely　after　the　brazing　process　due　to　the　fierce　alloying　between　the　molten　filler　metal　and　the　base　metal　during　brazing.　Test　results　show　that　the　shear　strength　of　the　brazed　joint　is　45　MPa.　The　fracture　morphology　of　the　brazed　joint　exhibits　intergranular　fracture　mode　and　the　crack　originates　from　the　hard　beta-Mg17Al12　phase.　Crown　Copyright　(C)　2012　Published　by　Elsevier　Ltd.　All　rights　reserved.