A microphone and speaker all-in-one machine includes a microphone assembly, a speaker assembly and a handle assembly; the microphone assembly, the speaker assembly and the handle assembly are stacked in sequence along a same axis; the speaker assembly includes at least two horns, a speaker stand and a speaker enclosure, wherein the at least two horns are disposed symmetrically on the speaker stand, and the speaker stand is fixed in the speaker enclosure; sounding surfaces of the at least two horns are disposed at a preset angle with respect to a central axis of the speaker stand, and the sounding surfaces face away from the microphone assembly. For the microphone and speaker all-in-one machine, the output volume is increased by providing the at least two horns in the speaker assembly, and the at least two horns are disposed symmetrically.