Objective To investigate the empowerment ability in children with juvenile type 1 diabetes mellitus (T1DM) and its influencing factors. Methods The general data inventory, Diabetes Empowerment Scale⁃Short Form (DES⁃SF) in simplified Chinese version, Coping with a Disease (CODI) scale, and Egna Minnen av Barndoms Uppfostran (EMBU) scale were employed to perform investigation on 131 children with juvenile T1DM. Empowerment ability was compared between children with different characteristics. The correlation of children's empowerment ability with coping style and parents' parenting style, as well as the influencing factors for empowerment ability were analyzed. Results Children's DES⁃SF total score was 4.09±0.83, and the proportions of low, medium, and high⁃level empowerment ability of children were 13.74%, 72.52%, and 13.74%, respectively. There was a statistically significant difference in DES⁃SF total score between children with different disease courses, whether to inject insulin independently or not, whether to measure blood glucose independently or not, and different martial statuses of parents (P<0.05). DES⁃SF total score positively correlated with average scores of self⁃consolation, acceptance, and distance from coping style, and self⁃evaluation, as well as average scores of parents' emotional warmth and understanding factors (P<0.05), whereas negatively correlated with average scores of paternal punishment and stringency, and parental rejecting and denial factors (P<0.05). The results of multiple linear regression analysis indicated that disease course of 6⁃12 months could decrease children's empowerment ability, and no independent insulin injection, increased average score of acceptance coping style, and increased average score of self⁃evaluation could elevate children's empowerment ability (P<0.05). Conclusion Empowerment ability of children with juvenile T1DM is favorable, acceptance coping style and positive self⁃evaluation can improve children's empowerment ability, while disease courses of 6-12 months can decrease empowerment ability of children, but independent insulin injection can not be regarded as empowerment ability improvement of children yet.