Abstract: 　Objective　To investigate the clinical characteristics of children with refractory Mycoplasma pneumoniae pneumonia (RMPP)，and to analyze the related risk factors. Methods   Clinical manifestations，laboratory indexes and image features of 628 children with Mycoplasma pneumoniae pneumonia (MPP) from January 2012 to October 2016 were retrospectively analyzed, and stepwise logistic regression analysis was performed for risk factors of RMPP. ROC curve was mapped to analyze the predictive value of independent risk factors in RMPP. Results　Compared with 486 cases of general Mycoplasma pneumoniae pneumonia (GMPP), 142 cases of refractory MPP was older, and durations of fever and hospitalization, azithromycin treatment days were longer, pulmonary complications, lesions in the right lobe and right upper lobe, pleural effusion, lobar atelectasis, pulmonary consolidations, and pleural thickening ratio were higher, the percentage of neutrophil, CRP, LDH, CK-MB, IL-6, IL-10, IFN-γ and IgA levels were also higher (all P<0.05). Stepwise logistic regression analysis showed that CRP, LDH, IL-6, IL-10, IFN-γ were the independent risk factors of RMPP. ROC curve analysis showed that CRP, LDH, IL-6, IL10 and IFN-γ has a good value for identification of children with RMPP and GMPP, the best threshold value of 15.3 mg/L, 402 IU/L, 13.82 pg/mL, 5.07 pg/mL, and 13.84 pg/mL, respectively. Conclusions  The clinical symptoms and imaging findings of the lung are severer，and the levels of serum CRP, LDH, IL-6, IL-10, and IFN-γ are significantly increased, which is helpful for the early identification of RMPP.