Based on the records among local chronicles in Poyang Lake district (985-1866), the historical ice condition in the lake is investigated and verified as follows: the ice cover over the lake was noted in 985,1513,1670,1840,1811-1812,1865-1866 in detail; in 1569, 1715, 1718, 1790, 1814 and 1857 also recorded.After 1866, there is no observerd or recorded ice cover in the whole lake on account of climatic reasons.The characteristics of the ice cover, such the ice thickness, the shape of the ice cap, etc are presented.Some preliminary analysis on the corresponding climatic backgrounds is given.In the recent 140 years, the changes in shape and area of the lake are relatively minor, no ice cover phenomenon appeared due to the unsatisfication of the climatic conditions.