The sense of smell is essential in daily life. Children with olfactory dysfunction face a series of problems, so assessing olfactory function during early-life period is very important. The Universal Sniff (U-Sniff) test is a widely used measurement of odor identification ability in children and adolescents, although there is a lack of normative data in China. Therefore, the aim of this study was to establish normative data for the U-Sniff test in a large sample of healthy Chinese children and adolescents. A total of 922 healthy children and adolescents (441 boys, 481 girls) aged 6–17 years from China were involved in this study. Odor identification performance was assessed using the U-Sniff test. The U-Sniff test mean score across all participants was 10.50 ± 1.73 points (range 1–12). U-Sniff test scores increased with age, and no effects of sex or an interaction between age group and sex were recorded in this population. Practical Applications: There is currently no published data reporting normative data of the U-Sniff test among Chinese children and adolescents. From the present research, normative data for olfactory identification using the U-Sniff test have been established for Chinese population aged 6–17 years. This study provides routine measurements to support future examinations at hospitals, school check-ups and so on, which can help patients with reduced olfactory function receive appropriate therapy as early as possible.