Based on daily precipitation data of 18 meteorological stations over Shandong Province during 1961~2008, the extreme precipitation thresholds were determined for different stations by the centesimal value method, and then, four indices including frequency, annual amount, intensity and annual daily maximum amount of extreme precipitation events were counted and their spatial characteristics and temporary trends were analyzed. The results showed that the extreme precipitation thresholds indicated the remarkable regional difference and gradually decreased from the center of the Taishan Mountain to outside. The frequency of extreme precipitation events was about 18 d/a with a sight regional difference. The spatial characteristics of annual amount, intensity and annual daily maximum amount of extreme precipitation events were similar, i.e., they were all characterized with a decrease from the southeast to northwest of Shandong Province and their high-value centers were located in the Taishan Mountain. For recent 48 years, 4 indices except intensity of extreme precipitation events showed a slight decreasing trend, which was more significant in Jiaodong peninsular, and moreover, the abruption changes in the year of about 1965 occurred for these three indices. However, the intensity of extreme precipitation events showed no obvious trend and no abruption change. Four indices of extreme precipitation events all indicated the remarkable interdecadal variability and furthermore, the qusia-11 year oscillating period existed for these four indices during 1961~2008, which were symmetrically distributed surrounding the middle-axis in the year of 1984.
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