Based on an analysis of ecoclimatic applicability for millet, the climatic yield model was established in different climatic re-
gion. The key meteorological factors affecting yield were confirmed,which included≥10℃accumulated temperature, average temper-
ature from Aug to Sep, precipitation in July, altitude, the rate between investment and yield and so on.An integrated index system of
suitable planting division was given,and the eco-climatic planting division was divided into 5 grades.At the same time,the way to
enhance utilizing efficiency of ecoclimate resources was brought forward.

Based on analysis of phenological features and metorological conditions during the growing period of prosomillet in Gansu province，the main agrometeorological facts that influence on the growth of prosomillet have been found out and discussed.The influences of meterological factors on the yield of prosomillet has been analyzed with statistical methods.The complex in dices system of ecoclimate regionalzation for planting prosomillet in Gansu province has been given，and the suitable regions have been pointed out，the fit
and unfit conditions in different regions have been commented.