Abstract: The receiving effect of the comb piezoelectric transducer on the nonlinear Lamb wave frequency-mixing technique was studied, with the comb piezoelectric transducer being taken as the receiving end. The influences of the finger spacing, the ratio of finger width to spacing, and the number of fingers of the transducer on the receiving performance were analysed by using finite element simulation. It was shown that the receiving effect was better when the finger spacing was matched with the wavelength of Lamb wave and the ratio of finger width to spacing was 0.5, and the influence of the number of fingers was shown to be in a fluctuating pattern. According to the above analysis results, the comb piezoelectric transducer was designed and fabricated and was used in the experiment. The experimental results showed that the fundamental Lamb waves propagating in opposite directions on both sides could be received by this transducer, and the difference frequency signals of the aluminium plate specimens with impact damage could also be captured. In conclusion, this transducer could be used for defect detection and evaluation of materials.