In order to verify the field monitoring accuracy and feasibility of the sex-pheromone-trap intelligent monitoring system for Chilo suppressalis, the author carried out the sex-pheromone-trap intelligent monitoring effect test for Chilo suppressalis in Fenghua District, Yinzhou District and Zhenhai District of Ningbo City in 2022. The results showed that the tested monitoring system had a high recognition accuracy for Chilo suppressalis. The average recognition accuracy rate of the three places was 97.2%, and the correlation coefficient (R² value) of intelligent recognition and manual recognition was above 0.9800. The dynamic comparison results of the occurrence of Chilo suppressalis adults obtained from the the sex-pheromone-trap intelligent monitoring and the light attraction monitoring were consistent, which can accurately reflect the occurrence dynamics of Chilo suppressalis in the field, and can be used for the population occurrence monitoring and early warning of Chilo suppressalis.