In　the　present　article,　the　wrought　magnesium　alloy　AZ31B　sheets　were　soldered　by　means　of　high-frequency　induction　heating　device　using　a　novel　binary　Zn-based　solder　alloy　in　argon　gas　shield　condition.　The　interfacial　microstructure,　phase　constitution,　and　fracture　morphology　of　the　soldered　joint　were　studied.　The　microhardness　and　shear　strength　of　the　soldered　joint　were　tested.　The　experimental　results　exhibit　that　alpha-Mg　solid　solution　and　gamma-MgZn　phase　were　formed　in　soldering　region.　Moreover,　the　beta-Mg7Zn3　phase　in　the　original　Zn-based　solder　alloy　disappeared　completely　after　the　soldering　process　due　to　the　fierce　alloying　between　the　molten　binary　Zn-based　solder　alloy　and　the　base　metal　AZ31B　during　soldering.　Test　results　show　that　the　shear　strength　of　the　soldered　joint　is　28　MPa.　The　fracture　morphology　of　the　soldered　joint　displays　an　intergranular　fracture　mode,　and　the　crack　originates　from　alpha-Mg　+　gamma-MgZn　eutectoid　structure.　The　interaction　between　the　molten　Zn-based　solder　alloy　and　the　base　metal　AZ31B　leads　the　Zn-based　solder　alloy　to　be　transformed　into　Mg-based　soldering　metal　during　soldering.