A semiconductor microwave oven, comprising: a body, having a chamber; a microwave input device, in communication with the chamber; a semiconductor microwave source, comprising: a signal source, configured to generate a first microwave signal, a power divider, comprising a first input end and N output ends, wherein the first input end of the power divider is connected to the signal source, power of the first microwave signal is allocated by the power divider according to a preset proportion to generate N second microwave signals with a same frequency, and the N second microwave signals with the same frequency correspond to the N output ends respectively for outputting, where, N is an integer larger than or equal to 2, and N drive amplifiers, connected to the N output ends respectively, wherein each drive amplifier is configured to conduct a drive amplification on a corresponding second microwave signal and to input the second microwave signal after the drive amplification to the microwave input device, so as to transmit via the microwave input device to the chamber; and a control device, configured to control the signal source to generate the first microwave signal, wherein each drive amplifier further comprises: a drive component, configured to conduct a first drive amplification on the second microwave signal so as to generate a fourth microwave signal; and an amplification component, connected to the drive component, and configured to conduct a second amplification on the fourth microwave signal so as to generate the second microwave signal after the drive amplification, and wherein power of the first microwave signal is greater than power of the second microwave signal, power of the fourth microwave signal is greater than power of the second microwave signal, and power of the second microwave signal after conducting the drive amplification is greater than power of the fourth microwave signal; characterised in that the microwave input device comprises at least one waveguide box, and the at least one waveguide box is set on the body; and in that the semiconductor microwave source further comprises a power combiner, and the microwave input device further comprises a microwave conversion device, where, the power combiner comprises N input ends and a first output end, the N input ends are connected to the N drive amplifiers respectively, the microwave conversion device is respectively connected to the first output end and the waveguide box, the power combiner is configured to combine the N second microwave signals after the drive amplification to obtain a third microwave signal and to output via the first output end, and the microwave conversion device is configured to feedback the third microwave signal to the waveguide box so as to transmit the third microwave signal to the chamber. a body, having a chamber; a microwave input device, in communication with the chamber; a semiconductor microwave source, comprising: a signal source, configured to generate a first microwave signal, a power divider, comprising a first input end and N output ends, wherein the first input end of the power divider is connected to the signal source, power of the first microwave signal is allocated by the power divider according to a preset proportion to generate N second microwave signals with a same frequency, and the N second microwave signals with the same frequency correspond to the N output ends respectively for outputting, where, N is an integer larger than or equal to 2, and N drive amplifiers, connected to the N output ends respectively, wherein each drive amplifier is configured to conduct a drive amplification on a corresponding second microwave signal and to input the second microwave signal after the drive amplification to the microwave input device, so as to transmit via the microwave input device to the chamber; and a signal source, configured to generate a first microwave signal, a power divider, comprising a first input end and N output ends, wherein the first input end of the power divider is connected to the signal source, power of the first microwave signal is allocated by the power divider according to a preset proportion to generate N second microwave signals with a same frequency, and the N second microwave signals with the same frequency correspond to the N output ends respectively for outputting, where, N is an integer larger than or equal to 2, and N drive amplifiers, connected to the N output ends respectively, wherein each drive amplifier is configured to conduct a drive amplification on a corresponding second microwave signal and to input the second microwave signal after the drive amplification to the microwave input device, so as to transmit via the microwave input device to the chamber; and a control device, configured to control the signal source to generate the first microwave signal, a drive component, configured to conduct a first drive amplification on the second microwave signal so as to generate a fourth microwave signal; and an amplification component, connected to the drive component, and configured to conduct a second amplification on the fourth microwave signal so as to generate the second microwave signal after the drive amplification, and