In this study, through Logistic univariate and multivariate analysis, it was found that the clinical T stage of bladder urothelial carcinoma (OR = 0.446, 95%Cl: 0.241–0.826, P = 0.01), the degree of differentiation (OR = 0.501, 95%Cl): 0.262–0.956, P = 0.036) and CA-IX expression intensity (OR = 2.325, 95%Cl: 1.157–4.673, P = 0.018) were independent influencing factors for predicting the recurrence of bladder urothelial carcinoma after resection. Here, CA9 is linked to bladder transitional cell carcinoma.