It is a new agriculture technique of green health care that produces the ideal natural wheat of enriched selenium by application of the rich selenium product, a the national invention patent (ZL96107830.8). Processing various natural food of enriched selenium with the wheat makes the selenium enter the food chain and supply a deficiency of selenium for human body safely, conveniently and economically, thus raise the healthy level of the mankind. In order to produce the wheat of enriched selenium, the influence of selenium liquid fertilizer on grain selenium content was studied by a way of spraying liquid selenium on the leaf faces in stages of the nodding and early and middle stages of grain filling. The results show: content of selenium of wheat grain is almost three times higher than control.