Water shortages and inadequate production of forage plants, are the two main problems in Khorasan Razavi Province. The production of forage sorghum can be a partial solution to this problem, but the local industrial dairy production does not show interest to this method of solution. This study was carried out in 2014 to compare and evaluate the yield and yield characteristics of the mix cultivation of forage corn (maize) and forage sorghum with single cultivation of each of these two plants under full and deficit irrigation using trickle irrigation. The experiment was randomized complete block design with five cultivation treatments and two irrigation treatments and each treatment had four replications. The cultivation treatments include: M 1 (single cultivation of corn), M 2 ( 75 % corn, 25 % sorghum), M 3 ( 50 % corn, 50 % sorghum, using every other furrow), M 4 ( 25 % corn, 75 % sorghum) and M 5 ( single cultivation of sorghum). The irrigation treatments include full application of the required water and 50 % application of the required water. The yield and yield characteristics of corn and sorghum were analyzed for each of the cultivation treatments under full and deficit irrigation. For full and deficit irrigation treatments, the amount of 5112.6 and 2895.8 m 3 per hectar irrigation water were applied, respectively. The results of comparison of full irrigation treatment with deficit irrigation treatment showed, for all cultivation treatments, the reduction of irrigation water by 47.7 %, only reduces the average wet and dry yields by 30.1 %. The yield and yield characteristics of both plants under mix cultivations were better as compared to the single cultivation of each plant, but the differences between mix cultivations were not significant. For full irrigation treatment, the M 2 treatment, with the wet and dry yields of 64.75 and 18.25 tons per hectares, respectively, and water use efficiency for dry yield of 3.65 kg per m 3 of applied water, was the best treatment. The value of LER = 2.07 showed higher land usage for single cultivation of each plant as compared to the mix cultivation of M 2 treatment for the same crop production. For deficit irrigation treatment, the water use efficiency, for the single and mix cultivations due to sorghum were 18 % higher as compared to the full irrigation treatment. For deficit irrigation treatment, the M 4 treatment, with the wet and dry yields of 53.46 and 14.96 tons per hectares, respectively, had better results as compared to the other treatments. The overall results showed that for full irrigation treatment, the M 2 treatment, and for deficit irrigation treatment, the M 4 treatment can be recommended. The mix cultivation of corn with sorghum can save irrigation water by about 50 %, while maintaining the current production record per unit area. Keywords : Forage maize , Forage sorghum, Intercropping, WUE.