[Objective] This paper elucidated the impacts from climate change to flood and drought in Northeast China in order to make full use of climatic resources

and to provide scientific basis for agricultural countermeasures to climate change. [Methods] Data of monthly temperature and precipitation of 50 stations in Northeast China from 1956 to 2012 were used to illustrate the spatiotemporal features of droughts and floods in this area by Spline interpolation

Mann-Kendall test and Z Index. [Results] (1) The area appeared a trend of warming and drying as a whole in recent 57 years. (2) Temperature in sub-humid area increased by 0.34℃/10 a. In humid area

it was relatively low as 0.25℃/10 a. Precipitation in sub-humid area decreased obviously as high as -8.82 mm/10 a. (3) Z indexes in the whole area

semi-arid and sub-humid area showed an evolutionary features as "flood-drought-flood-drought". (4) The centers attacked by high frequency of large floods were Sanjiang Plain

North of Lesser Khingan Mountains and Nenjiang River Valley

and so on. While

the western area was much more frequently to suffer severe drought. [Conclusion] The ecological environment of this area is fragile

in order to offset the negative influences of drying-warming trend to farming and animal husbandry in drought-attacked areas

emergency works should be planned as early as possible to relief drought timely.