The analyses are made of the characteristics of climate change and its effect on planting in the last 45 years in Zhang Jiakou by means of the data of precipitation, temperature, sunshine, frostfree period, etc., from 14 weather stations from 1960 to 2004, as well as the data on the planting area, grain yields, vegetables, economic crops, total agriculture production and agrometeorologi cal disasters. The conclusion shows that temperature increased obviously by 0.4 ℃ every 10 years; the number of frostfree days increased by 6.2 days every 10 years; precipitation reduced fluctuantly; sunshine duration assumed a reducing trend after the 1990s. Along with the climate warming and precipitation decreasing, the planting area and food yields reduced, and drought disasters became more serious; but the planting area and yields of such economic crops as vegetable and fruit increased, so the economy is benefited.