Speleothems are important repositories of palaeoclimatic data. Both 14 C and uranium series methods can be used to date the deposit and their precision have been improved with AMS supplied for 14 C and TIMS supplied for U series methods. The stable isotopic sequences of speleothems can give much imformation about palaeoenvironmemt the excellent one of which was from the vein calcite of Devils Hole. The relation between the mean δ 18 O of precipitation and near land surface temperature is complex. The stable isotopic sequences of speleothems from East China could show mainly the condition of wet and dry according to the characteristics of the isotopic change of the precipitation in the monsoon regions of China and the fractional principle of carbonate deposits in caves. The high resolution stable isotopic records from speleothems in East China can supply change of 10 0～10 1a scale of the monsoon, and annual rings of speleothems can supply annual records of precipitation.