Abstract: Used three single factor trials which are different cutting frequency, fertilizer condition and plant density, Mensurate fresh grass yield, dry grass yield and the number of tillers for found the planting technology of Pennisrtum purpureumxp typhoidevm cv.Reyan NO.4. The results showed that cutting frequency noticeable effect on the biology yield of Pennisrtum purpureumxp typhoidevm cv.Reyan NO.4, but plant density and fertilizer is not noticeable.