The author adopted meteorological data from meteorological stations in Yebaishou and Liaoxi from 1953 to 2012 to assess and evaluate agricultural water consumption, atmospheric precipitation, and agricultural water demand satisfaction in Liaoxi area during agricultural production, as well as frequency of drought in different periods by integral humidity index, water balance and humidity index. The results showed that: from 1953 to 2012, the atmospheric precipitation decreased during agricultural production, climate change rate was -9.343 mm/10 a; agricultural water consumption increased, and climate change rate was 6.996 mm/10 a; the average humidity gap during agricultural production period was - 136 mm. The agricultural satisfaction of precipitation resource was 76.3%, and the probability of precipitation shortage was 90.0%. In Liaoxi, the climate during agricultural production period was semi- humid and semi- arid, years with severe drought and more accounted for 5.0 %; over past 10 years, drought risk increased by about 10%. Generally,rainfall was reducing in west Liaoning, but the water consumption was increasing, agricultural water demand satisfaction was declining, drought risk was growing. With climate warming in west Liaoning, the climate during crops growing period was transforming from semi- humid and semi- arid climate to semi- arid climate over recent 10 years.