Python crawler was used to obtain online reviews, the index of customer satisfaction evaluation system was obtained through word frequency statistics and K-means method, calculate the weight of each index through TF-IDF method, and the overall satisfaction status of fresh products was get. The results show that consumers have relatively high satisfaction with the service and price of fresh products, and relatively low satisfaction with packaging. Consumers have the highest satisfaction with seafood and aquatic products, and the lowest satisfaction with fresh fruits. Finally, targeted suggestions were put forward for improving customer satisfaction of fresh food e-commerce.