This study was conducted to find the reasons for chlorosis of grape in Yinchuan and select better iron preparations for remedying it. Soil and plant diagnosis and spraying diagnosis were used onto the grapevine trees in some orchards within Yinchuan area. The remedy effects of different iron preparations were compared by determining the content of chlorophyll and available iron of grapevine leaves. The results showed that the reason for grapevine chlorosis was high PH of soil. The effects of various iron preparations were significantly different. The effect of 0.5% FeSO₄ + 0.1% citrate + 0.3% urea was the best, which significantly increased the content of chlorophyll.