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The study aims to identify the growth characteristics of corn crop under mixed crop planting system with Arachis pintoi. The study was carried out according to completely randomized design consisting of 4 treatments and 3 replications for each treatment. The treatments were five different mixed crop planting model, namely P0 = Corn crop 100%; P1 = Corn crop 80% + A. pintoi 20%; P2 = Corn crop 50% + A. pintoi 50%; P3 = Corn crop 20% + A. pintoi 80%. The parameters observed in this study were plant height, leaf area, and number of chlorophyll of corn crop. The results of the study indicated that the average plant height of corn crop for each treatment was P0 = 142.72 cm, P1 = 143.00 cm, P2 = 152.20 cm, P3 = 123.00 cm. The average leaf area for each treatment was P0 = 819.25 cm2, P1= 871.48 cm2, P2 = 868.44 cm2, P3 = 793.22 cm2, and the average number of chlorophyll for each treatment was P0 = 39.84 unit, P1 = 41.84 unit, P2 = 41.30 unit, and P3 = 39.63 unit, respectively. Statistical analysis showed that the treatments did not significantly affect (P>0.05) all the parameters. It can be concluded that using A. pintoi in the mixed crop planting system with corn crop had no significant benefits in terms of growth characteristics of the corn crop