To study the effect of working pressure, nozzle diameter and installation spacing on the hydraulic performance of spray depth and uniformity coefficient in sprinkler irrigation, a new typed rotating plate sprinkler was put forward. The nozzle diameters of 2.98mm, 3.37mm and 3.77mm were chosen to carry out the research. The radial water distributions were measured at the working pressure of 0.1MPa, 0.2MPa and 0.3MPa. It was found that the irrigation intensity was increased with the increase of nozzle operating pressure or nozzle diameter. The combined uniformity coefficient were calculated with the installation spacing of 2m, 3m, 4m, 5m and 6m. The calculation results were compared with the testing experiments. The error value between the tested and simulated results of the combined uniformity coefficient was within 0.5%～11.0%, and the importance order of influencing factors was installation spacing, working pressure and nozzle diameter. The results showed that the average nozzle discharge coefficient was more than 0.9, which indicated that the new typed sprinkler had good performance; the optimum irrigation uniformity coefficients of three kinds of nozzles were 75.9%, 78.2% and 85.1%, respectively. The optimum installation spacing of 4m for a new typed R3000 rotating plate sprinkler and an empirical formula for the calculation of uniformity coefficient was proposed, which provided important theoretical data for its engineering application.