A split-type microwave oven, comprising: a first housing assembly and a second housing assembly, the first housing assembly is provided with a first microwave shielding member, the second housing assembly is provided with a second microwave shielding member, and the first microwave shielding member is configured to define a microwave-heating resonant cavity together with the second microwave shielding member; a microwave source component mounted to one of the first housing assembly and the second housing assembly, wherein the microwave source component comprises a control unit, a power source, an electric power supply and an electromagnetic waveguide, the electromagnetic waveguide is configured to guide a microwave into the microwave-heating resonant cavity, the control unit, the electric power supply and the electromagnetic waveguide are connected to the power source respectively; and a microwave shielding and choking member located outside of the microwave-heating resonant cavity and configured to prevent a microwave leakage when the first microwave shielding member defines the microwave-heating resonant cavity together with the second microwave shielding member; the split- type microwave oven being characterised in that the second housing assembly is detachably disposed to the first housing assembly, and is further characterised by including a detection device connected to the control unit and comprising an emitter for emitting a microwave signal and a receiver for receiving a standing wave, the microwave device being configured to detect whether the microwave leakage occurs to the microwave-heating resonant cavity, wherein when the second microwave shielding member is disposed on the first microwave shielding member to define the microwave-heating resonant cavity, the emitter is configured to emit the microwave signal into the microwave-heating resonant cavity, and the receiver is configured to receive the reflected standing wave. a first housing assembly and a second housing assembly, the first housing assembly is provided with a first microwave shielding member, the second housing assembly is provided with a second microwave shielding member, and the first microwave shielding member is configured to define a microwave-heating resonant cavity together with the second microwave shielding member; a microwave source component mounted to one of the first housing assembly and the second housing assembly, wherein the microwave source component comprises a control unit, a power source, an electric power supply and an electromagnetic waveguide, the electromagnetic waveguide is configured to guide a microwave into the microwave-heating resonant cavity, the control unit, the electric power supply and the electromagnetic waveguide are connected to the power source respectively; and a microwave shielding and choking member located outside of the microwave-heating resonant cavity and configured to prevent a microwave leakage when the first microwave shielding member defines the microwave-heating resonant cavity together with the second microwave shielding member; the split- type microwave oven being characterised in that the second housing assembly is detachably disposed to the first housing assembly, and is further characterised by including a detection device connected to the control unit and comprising an emitter for emitting a microwave signal and a receiver for receiving a standing wave, the microwave device being configured to detect whether the microwave leakage occurs to the microwave-heating resonant cavity, wherein when the second microwave shielding member is disposed on the first microwave shielding member to define the microwave-heating resonant cavity, the emitter is configured to emit the microwave signal into the microwave-heating resonant cavity, and the receiver is configured to receive the reflected standing wave.