The invention discloses a recognition method of a strong pulse signal based on a slope and amplitude difference value threshold. The recognition method comprises the following steps: obtaining an acoustic signal through an acoustic sensor and converting the acoustic signal into an electrical signal to be sent to a preprocessing circuit so as to be amplified, filtered, detected, sampled and smoothed, finally obtaining a smooth curve; obtaining the slope between various points and adjacent points which form the curve by aiming at the smooth curve, and calculating slope difference values of the adjacent points, selecting the point of which the difference value of the slope with that of adjacent sampling points on two sides is greater than a preset threshold as a mutation point; taking the slope between the mutation point and the former adjacent sampling point of the mutation point as an initial value, calculating the slope difference value between the slope of the mutation point on the smooth curve and the follow-up point of the mutation point and the initial value, and an amplitude difference value between the mutation point and the follow-up point, if the amplitude difference value and the slope difference value of the follow-up points and the mutation points of set number are both greater than a set threshold value, judging the signal to be the strong pulse signal. The recognition method of the strong pulse signal based on the slope and amplitude difference value threshold disclosed by the invention can recognize the strong pulse signal.