【Objective】This study analyzed the effects of climate warming on the growth of winter wheat in Tianshui City to reveal the response of winter wheat to climate warming and explore the suitable sowing period for local winter wheat and changes in winter wheat belt.It could also improve planting structure adjustment and food security.【Method】Using meteorological data in Tianshui City,Gansu Province (annual mean temperature,negative accumulated temperature,and ground temperature),and winter wheat growth data from the Institute of Agriculture Sciences of Tianshu in 1979-2007,the equation of relationship between wheat growth period and temperature was regressed with DPS software.【Result】Annual average temperature,average temperature,and ground temperature increased while absolute value of negative accumulated temperature decreased from 1979 to 2007.Annual mean temperature,negative accumulated temperature,and the average temperature were negatively correlated with growth period of winter wheat,and average temperatures in winter and spring were negatively related to seeding-shooting period.As the increase of average temperature during growth of winter wheat since 1979,climate warming decreased the durations of shooting stage,spiking stage,and maturity stage shortened by 4.261,2.759,and 4.811 d/10a,respectively.Seeding-shooting period and spiking-maturity period were shortened as well while shooting-spiking period was extended.【Conclusion】Climate warming significantly reduced the growth period of winter wheat in Tianshui.