Objective To summarize and analysis the clinical and psycho-behavioral characteristics of lower urinary tract dysfunction (LUTD) in children, and provide a reference for accurate clinical diagnosis and personalized treatment. Methods The clinical data of 382 children with dysuria treated in West China Hospital of Sichuan University from July 2020 to October 2021 were retrospectively analyzed, and the relevant clinical features and psych behavioral characteristics of children with LUTD were analyzed. Results There were 256 boys and 126 girls in 382 children with lower urinary tract dysfunction. The mean age was (6.79±2.51) years. 265 had bed wetting symptoms at night, 194 had day-time leakage, 153 had frequent micturition symptoms, and 264 had urgency. Among the 382 children, 89 had special micturition posture, 44 had intermittent micturition symptoms, and 26 had urinary tract infection. Among the 382 children, 82 had abnormal defecation, including 55 cases of constipation and 27 cases of fecal dirt. Children aged 6-11 had the highest incidence of behavioral problems (28.7%), the score of the daytime urine leakage group (37.09±19.32) was significantly higher than that of the no daytime urine leakage group (23.81±15.96) (t=4.978, P＜0.05)The total score of self-consciousness of children with lower urinary tract dysfunction was (52.49±12.15)The scores of behavior, intelligence and school, physical appearance, anxiety, fit, happiness and satisfaction were all low. The score of the daytime urine leakage group（45.14±10.76）was significantly lower than that of the no daytime urine leakage group（61.76±4.93）(t=-6.564,P＜0.05) Conclusion The clinical manifestations of LUTD children vary widely. Children often have obvious psychological and behavioral problems, especially those with obvious school age and daytime symptoms. Therefore, clinical doctors and nurses should choose appropriate assessment tools and methods, make accurate assessment and judgment, pay attention to the psychological and behavioral problems of children, and develop treatment plans in multidisciplinary cooperation to obtain the best treatment effec