It is about Zn 2+ and SMZ TMP affect the germination percentage of wheat is not clear,but the handled solution of 0.09%Zn 2+ +0.5mg/L SMZ TMP can increase its germination index,vigour index,the length of seedling,the chlorophyll content of seedling leaves and the root system vigour of wheat seedling;0.12%Zn 2+ +0.5mg/L SMZ TMP can increase its activity of α starch amylase.