Objective To explore the relationship between height growth and nutritional metabolic indicators in children with type 1 diabetes mellitus (T1DM). Methods Clinical data and metabolic biochemical results of 124 children with T1DM admitted to the department of endocrinology of Jinan Children's Hospital from December 2021 to May 2025 were selected. According to the course of disease, the sick children were divided into a diagnosed within 1 year group and a diagnosed more than 1 year group. The correlation between height standard deviation score (height SDS) and nutritional metabolic indexes in the two groups was retrospectively analyzed. Results When not corrected and when relevant factors were corrected, there was no significant correlation between the height SDS and the laboratory indicators in the diagnosed within 1 year group. However, there was a correlation between the height SDS and the serum uric acid and the percentile value of serum uric acid in the diagnosed more than 1 year group (P<0.05). In the multiple linear regression analysis, the height SDS in the diagnosed more than 1 year group increased with the increase of serum uric acid and the percentile value of serum uric acid (β=0.005, P=0.032 and β=0.012, P=0.025). Conclusions Height SDS of children with T1DM is positively correlated with serum uric acid level. Further studies are needed to determine its role as a monitoring tool for T1DM management.