OBJECTIVES: Studies about the relationship between vegetable intake and blood pressure (BP) in children were relatively scarce. The aim of this study was to explore the impact of vegetable consumption on children's BP and to find an appropriate vegetable consumption amount. STUDY DESIGN: Cross-sectional and Longitudinal Study. METHODS: The study included 10,391 children aged 6-12 years from a cohort established in 2014, with a mean age of 9.24(7.76,10.83) years, of which 1863 children (in grades 1 to 2 at baseline) followed up in 2019. A multiple linear and logistic regression model was used to analyze the relationship between vegetable intake and BP levels or elevated BP in children, as well as performed in subgroups. RESULTS: The samples was categorized into three groups(Q CONCLUSION: Vegetable intake may protect BP levels in children, and vegetable intake in the range of ≥7.80 g/d × kg was a recommended dosage for children's BP protection.