Objective To explore the kidney ureteral calculi application of MSCT curved surface restructure the advantages and disadvantages of urinary tract imaging diagnosis. Methods Selected from 92 cases of ureteral calculi patients suspected kidney, according to the different method of checking points into two groups, 46 cases in each group, the observation group of MSCT curved surface reconstruction imaging of the urinary tract, the control of magnetic resonance urinary tract imaging system check, to compare the diagnostic accordance rate of two groups. Results MSCT curved surface restructure urinary tract imaging characteristics of ureter middle section of the cavity, renal pelvis appear short strip, nodular shadows of multiple low signal, ureter and short strip shadow to the same, ureter and renal pelvis and calyces mild water expansion; MSCT curved surface restructure urinary tract imaging showed renal calyx calculi 27 cases (100.0%), 8 cases of ureteral calculi times (72.7%), 9 cases (77.8%) of the kidney with ureteral calculi; Magnetic resonance examination showed urinary tract imaging system kidney stones in 23 cases (88.5%), 7 cases of ureteral calculi (58.3%), 5 cases (55.5%) of the kidney with ureteral calculi, MSCT group the diagnosis coincidence rate of 91.3% to 76.1%, significantly higher than that of control group statistically significant difference (P<0.05). Conclusion MSCT curved surface restructure urinary tract imaging is one of the important methods for diagnosis of ureteral calculi, high resolution, but it cannot display tube cavity structure, and the visual display of urinary stones, and only with water expansion of high signals in the movie indirectly shows no filling defect in the shadow, easily lead to misdiagnosis and small stones.