The EMD(empirical mode decomposition)method is introduced in this paper to analyze the reconstructed sequences of Holocene stalagmite and ice-core oxygen isotope records and tree ring 14C content,which document the variability of climate and solar activity respectively.The signal analysis showed that there existed multiple periods including 88~110、206~220、~350、~520、~1 000、~2 200 and~4 300,in both sequences.Furthermore,the impact of solar activity on the climate change is explored in centennial to millennial-scales.