Objective: To observe the clinical effect and influence on the immune function of Yupingfeng Granule combined with complex pulse magnetic therapy Qi deficiency of spleen and lung during infantile pneumonia convalescence. Methods: Randomly divided 80 patients with the syndrome of Qi deficiency of spleen and lung during infantile pneumonia convalescence into the treatment group and the control group randomly. 40 cases in each group, given antibiotic anti-infection, relieving cough and relieving asthma methods to both groups, and an extra treatment of Yupingfeng Granule combined with complex pulse magnetic in the treatment group. Observed the efficacy and the changes of immune functions in two groups. Results: The total effective rate of the treatment group is 97.50%; the total effective rate of the control group is 85.00%, and the difference is statistically significant (χ2=3.9139; P=0.0479). The resolution time of coughing (6.23±1.53) d, the resolution time of expectoration (5.53±1.22) d, the resolution time of crackles in lung (6.86±2.05) d and period of using antibiotic (6.23±1.96) d of treatment group children are significantly shorter than those of the control group children (9.23±2.23), (8.34±1.93), (10.45±2.79), (10.34±2.04) d, the difference is statistically significant (t=7.0158, P=0.0000; t=7.7836, P=0.0000; t=6.5581, P=0.0000; t=9.1884, P=0.0000); IgG, IgA and IgM level in the treatment group are significantly higher than those before the treatment and those in the control group after the treatment (t=4.8069, P=0.0000; t=2.2209, P=0.0293; t=5.8174, P=0.0000; t=2.4821, P=0.0152; t=2.4826, P=0.0152; t=2.4419, P=0.0169). There is no obvious adverse reaction observed in both groups. Conclusion: Qi deficiency of spleen and lung during infantile pneumonia convalescence with Yupingfeng Granule combined with complex pulse magnetic treatment has definitely curative effect, it can improve the clinical symptoms and prognosis, and raise the level of immune function.