The presence of weeds in corn plantations can result in loss of corn yield, so we need to do an effective and efficient weed control effort. This study aims to determine the effect of the mixture of Atrazin + Nicosulfuron herbicide on weeds in maize (Zea mays L.) plantations. This research was conducted in the Pamulihan Subdistrict, Sumedang District from April to June 2017. The experimental design used was a Randomized Block Design (RCBD) with 6 treatments that were repeated 4 times, namely: Atrazine + Nicosulfuron with a dose level of 1.5 l / ha, 2.0 l/ha, 2.5 l/ha, 3.0 l/ha, manual weeding and without control. The results showed that the mixture of Atrazin + Nicosulfuron herbicide doses of 1.5 – 3.0 l/ha was effective in controlling broadleavedweeds such as Richardia brasiliensis, Panicum repens, Cynodon dactylon, Cyperus rotundus, total weeds. The mixture of Atrazin + Nicosulfuron herbicide dose 1.5 - 3.0 l / ha shows no symptoms of poisoning in maize. mixture of Atrazin + Nicosulfuron herbicide at a dose of 3.0 l/ha was able to provide the highest corn crop yield of 3443.80 g / plot.