Embodiments of the invention disclose a method and a device for detecting an audio acquisition state in an echo scene. The method comprises the following steps of acquiring a far-end signal and a near-end signal of a current frame, and determining an error signal according to the far-end signal and the near-end signal, wherein the far-end signal and the near-end signal are frequency domain signalscorresponding to a time domain signal of the current frame; determining first coherence coefficients of the near-end signal and the error signal and second coherence coefficients of the far-end signal and the error signal according to the far-end signal, the near-end signal and the error signal; determining a coherence difference and a difference tracking value of the current frame according to the first coherence coefficient and the second coherence coefficient, wherein the difference tracking value of the current frame is determined according to the coherence difference of the current frameand the difference tracking value of the previous frame; and determining the audio acquisition state of the current frame according to the coherence difference and the difference tracking value of the current frame. According to the embodiments of the invention, a changed comparison threshold is determined according to each frame of audio signal, so that the detection precision of the audio acquisition state of a terminal is improved.