Abstract: In order to explore the temporal and spatial changes of the extreme climate indices in Shandong Province, based on the daily temperature and precipitation data of 95 meteorological stations in Shandong Province from 1979 to 2020, we used the Mann-Kendall (M-K) test and Sen slope estimation methods to calculate the time-varying characteristics and the Inverse Distance Weight method (IDW) to explore the trend of spatial change. The results show that: (1) The extreme temperature indices (TN10p and FD0) characterized by low temperature in Shandong Province show a downward trend, and the decline rates are 0.004 8 and 6.42 d/(10 a) respectively, and TX90p, TXx and SU25 characterized by high temperature show an upward trend, and the ascent rates are 4.06 d/(10 a), 0.32 ℃/(10 a) and 2.31 d/(10 a) respectively. The extreme temperature indices in the inland and coastal areas show good consistency with Shandong Province, but the spatial trend is not obvious. (2) The extreme precipitation indices are upward, and most indices in the coastal area are larger than those in the inland area. The precipitation intensity indices (R95p, R99p and RX5day) show a significant increasing trend, and the ascent rates are 22.16, 10.83 and 10.55 mm/(10 a) respectively. In terms of spatial distribution, the high value areas are mostly the eastern coastal areas and some areas in the south, which may increase the risk of flood disasters.