Abstract: Objective To investigate the therapeutic effect of umbilical cord combined with infrared treatment on spleen deficiency diarrhoea in children, thus to find the best treatment for children with diarrhea due to spleen deficiency. Methods A total of 150 children with spleen deficiency diarrhea who were treated in our hospital from January 2017 to January 2018 were selected as study subjects. Digital table method was divided into treatment group and control group, with 75 patients in each group, and the control group were treated with oral bifidus viable triple bacteria capsules. Patients in the treatment group were treated with spleen deficiency and combined with infrared rays for treatment. The group intervention time was 14 days. After the intervention, the treatment efficiency of the two groups was compared. The clinical symptom scores of the two groups before the intervention, the first 4 days of intervention, the first 10 days of intervention and the 14th day of intervention were compared. The number of daily stools before and after the intervention was compared. Results After treatment, the effective rate of treatment was 89.33%, which was significantly higher than that of the control group (68.00%), and the difference was statistically significant (P<0.05). The difference of contrast was not statistically significant (P>0.05). The scores of the treatment group on the 4th, 10th and 14th day after intervention were lower than the corresponding scores of the control group (all P<0.05). After the evaluation, the recovery time of the stool in the treatment group was shorter than that of the control group (P<0.05). There was no significant difference in the number of daily bowel movements between the two groups before intervention (P>0.05). The number of stools per day in the treatment group was lower than that in the control group (P<0.05). Conclusion Umbilical infrared welding joint has a good effect in the treatment of infantile diarrhea spleen disease, which can improve the clinical effect and shorten the treatment time.