[Objective] To analyze the drought variation characteristics of the Huaihe River basin in recent 60 years, and provide a reference for the later drought-resisting disaster. [Methods] The weight average of precipitation(WAP) index, space Kriging method, and wavelet analysis methods were used to study the drought variation of the Huaihe River basin. [Results] The spring WAP index declined greatly in the early 21st century, it is prone to drought in spring. Meanwhile the winter WAP index increased significantly after 1980 and the winter drought has reduced, and the average index of WAP representation the main cycle of drought was 2~3 years and secondary was 6~7 years. Furthermore, the WAP index of Huaihe river basin showed a progressive decrease from the southeast to the northwest while the degree of drought increases from the southeast to the northwest as a whole in space. [Conclusion] The WAP index can represent time and space characteristics of drought in the Huaihe River basin.