Objective：This study aims to explore the reliability and validity of the modified test for respiratory and asthma control in kids-Chinese version（TRACK-C） in the clinical application of children under 5 years old with asthma in China. Methods：A retrospective questionnaire was used to collect basic information related to asthma children under 5 years old. TARCK-C was used to evaluate symptoms and medication in children with asthma. The results of TRACK-C were compared with GINA guidelines to test the reliability and validity. Results：A total of 136 children were enrolled in the study. The median score of the TRACK-C questionnaire was 95 and Cronbach’s α was 0.704. The scores of children who had visited the emergency department last month were significantly lower than those of children who hadn’t，and the differences were statistically significant（P < 0.001）. There was no significant difference among the children who had or hadn’t used glucocorticoids in the last month（P > 0.05），but the score of children with wheezing was significantly lower than that of non-wheezing children（P < 0.001）. When the children were judged according to the GINA standard，the scores of children in the partially controlled group were significantly lower than those of children in the well controlled group，and the differences were statistically significant（P < 0.001）. When children were classified according to the criteria of clinicians，there were also significant differences among the uncontrolled group，the partially controlled group and the well control group（P < 0.001）. The cut-off of 90 points had the highest area under the ROC curve（0.943）. Conclusion：It was demonstrated that the TRACK-C has satisfactory clinical reliability（internal consistency）and validity（compared with GINA）. It can be used as a useful tool to distinguish children with different respiratory symptoms and different control levels，and suggested in asthma management of children under 5 years old in China.