To guarantee that ships can navigate safely, the International Maritime Organization mandates that all ships navigating internationally must install the automatic identification system (AIS). AIS works in the very high-frequency (VHF) maritime mobile band, and to ensure the signal receiving performance of AIS equipment, it is necessary that the receiver sensitivity can be quickly evaluated and detected. Hence, we propose an evaluation model of AIS receiver sensitivity. The model first measures the packet error rate (PER) of AIS data transmission at a specific power. The distribution of the AIS receiver sensitivity characteristic curve under any transmitted power can be directly obtained, and then whether or not the sensitivity of the AIS receiver satisfies the performance requirements can be quickly evaluated. Regression analysis and the results of actual measurement demonstrate that this model has a goodness of fit (R-squared) value of 0.99 between the power–PER curve of the analog input signal and the measured data, which signifies test efficiency and accuracy beyond conventional test methods.