Abstract: Based on the data of annual average temperature and annual precipitation of 99 meteorological stations from 1965 to 2005 in Hebei Province,the temperature climate productive potential(TSPt),the precipitation climate productive potential(TSPN) and the evapotranspiration climate productive potential(TSPV) in Hebei Province were evaluated by Miami Model and Thomthwaite Memorial Model.Taken TSPV as a main factor,the climate productive potential was classified by Experiential Ortho Function(EOF) and Rotary Experiential Ortho Function(REOF).The results indicated that water was the main limited factor for crop yields in Hebei Province,while the thermo conditions were relative good.The middle and south areas of Hebei Plain and the south parts of Yanshan mountains was with higher TSPt and TSPN respectively,while the distribution of the TSPV was complicated,but mainly located in the south parts of Yanshan mountains.The Bashang altiplano was with lower TSPt,TSPN and TSPV.According to Tspv,Hebei Province was divided into five regions,e.g.north-west altiplano area,north mountain area,south parts of Yanshan mountains,middle plain area and south plain area.

Key words: Productive potential, Productive potential, Miami model, Thornthwaite Memorial model, Climatic classification