This research aims to determine the rate of manure bokashi addition on growth and production in the first harvest of King grass (Pennisetum purpureophoides). The observed parameters consisted of plant height, number of tillers, fresh weight production, dry weight production, dry matter production. This research method used non factorial Randomized Block Design (RBD), consisting of 6 (six) treatments with 4 (four) replications. As for the treatment performed is P0: Not using manure bokashi (control). P1: 50g / Polybag. P2: 75g / Polybag. P3: 100g / Polybag. P4: 125g / Polybag. and P5: 150g / Polybag. From 6 treatment levels and 4 replications we got 24 experimental units with 3 sample plants each, so the total sample used were 72 experimental units. To know the effect of treatment, the data obtained were analyzed by analysis of variance and real honest difference (RHD) advanced test. Based on the result of research that the level of addition of manure bokashi significantly affect on plant height, number of tillers, fresh weight production, dry weight production and dry material production. The additional level of cow dung bokhasi of 30 tons/ha (P5) was able to give the best effect on all observed variables.