Objective Analysis the use of of dehydroacetic acid （DHA） in rice noodle products and the health risk on consumers in Zhejiang Province. The data will provide support for regulatory policy adjustments and the development of standards by relevant authorities.Methods Rice noodles samples were collected from relevant cities in Zhejiang Province and DHA levels were measured. The dietary intake of DHA was estimated by using the consumption data of rice noodles obtained from the consumption survey. Assessment the daily exposure of DHA in rice noodle consumers.Result Among the 641 samples， DHA was detected in 329 samples （overall detection rate=51.31%）. Among whom， the average level was （280.00±242.69） mg/kg， with P50 and P95 being 218.00 mg/kg and 840.50 mg/kg， respectively. The DHA levels differed significantly across samples from different sources， with those from online stores having the highest level. The average daily exposure of DHA in rice noodles consumers in Zhejiang Province was 0.209 mg/kg·BW， and the high-end exposure level （P95） was 0.512 mg/kg·BW. Since the acceptable daily intake （ADI） value of DHA has not been established， the related health risks cannot be comprehensively evaluated， but the DHA exposure caused by eating rice noodles is warranted further research.Conclusion DHA is widely used in rice noodles products， especially from the online marketing sources. After the implementation of “National Food Safety Standards-Standard for the Use of Food Additives”， preventing the excessive use of dehydroacetic acid will be a key focus of food safety regulation.